Hi I'm that Ferroseed guy, now posting again!
A- ----> A (I know this nom didn't get enough votes last time but I'd like to revisit this one)
B+ ----> A-
Slow, heavy-hitting wallbreakers have reached a point in the metagame where they have proven exceedingly difficult to prepare for due to lacking solid switch ins outside of a few niche and lesser splashable Pokemon, and without those answers, they can and will effortlessly secure a kill each time they are able to come in and click a move. We have all at this point acknowledged Aurorus and Eelektross (though I consider this a little different than the other three since it does less outright killing and more just breaking down stuff and guaranteeing momentum) to be among the main players of this group, but 2 other Pokemon that are underestimatingly, yet still play this game quite well are Exeggutor-Alola and Aggron. These Pokemon are also an absolute menace to switch into without the few hard checks to them, and even they are prone to be worn down.
Exeggutor-Alola's Choice Specs set pretty much has overshadowed Drampa in recent times. Not only that, it has essentially a free slot in which it is able to choose what it wants to do, whether it'd be a secondary Grass-type move in Giga Drain for recovery (which is great since this mon offers check to a lot of relevant stuff if you're able to keep it healthy), Sleep Powder to severely cripple certain Specially Defensive switch ins like Clefairy, and perhaps a few other options. Otherwise, teams are extremely hard-pressured to deal with its dual nuke options in Leaf Storm and Draco Meteor (even clef is often 2HKOd by Leaf Storm, an impressive feat in and of itself), and just creates this game where you have to be on top with your predictions against it, or otherwise just lose a mon. Even if you know it's going to click Leaf Storm as opposed to Draco Meteor, Grass resists such as Skuntank, Oricorio, and Weezing are not reliable switch ins whatsoever and are prone to dying outright after some prior damage.
Another important factor to consider is its defensive utility thanks to its typing; Exeggutor-Alola secures a breaker and check to Kingler, Eelektross, Lilligant, Bellossom, Lurantis for offensive teams, as well as an offensive threat that can completely negate Ferroseed's only form of recovery game, all while invalidating Gastrodon thanks to how freely it switches into it. This is a great amount going for it, especially when you consider that this set has a lot more early-game and mid-game presence compared to its OTR set. That having been said, while I think Specs is Eggy's most threatening and consistent set right now, the OTR set still have plenty of magnificent cleaning potential and a great match-up vs offensive, and is quite literally Trick Room's savior.
Aggron is an absolute wrecking ball as an offensive threat, and while it is frequently compared to Aurorus, one major thing going for it is how fantastic it is at functioning as an anti-meta of sorts to how teams have been adapting to Aurorus itself. It takes advantage of a vast amount of defensive answers to Aurorus in Type Null, Munchlax, fatter variants of Alolan Sandslash, and Clefairy, and has a much better match up against stall and fatter teams in practice. It also retains the ability to come in relatively easy vs Oricorio-Sensu, Skuntank, non-Earthquake Regirock, and Mesprit, and arguably has much better survivability due to its lack of a Stealth Rock weakness and immunity to Toxic Spikes in a metagame where Weezing is quite prevalent. The aforementioned adaptations to Aurorus have also made Head Smash spam arguably even less punishable when compared to Blizzard, which is huge considering Head Smash kills almost everything. Sets that aren't Choice Band also have a lot of potential and further add to Aggron's unpredictability, as a lot of defensive Pokemon it easily capitalizes on are crippled severely against it, and Ferroseed tends to have an even worse match up against those sets due to its ability to switch moves. Jolly nature is also an interesting approach to take since those variants also outspeed Aurorus and most common AV Lanturn sets.
These two Pokemon are scary, and in my opinion make up the big 4 (or 5, if you include Kingler but I feel it doesn't count because it frequently runs Agility lol) of PU's top slow breakers right now, and I think moving Eggy and Aggron up right now definitely serves to highlight their threat level well.
A- ---> A
Contrary to popular belief, Lanturn has always done a good job at holding together the teams that use it together to the point where I feel that just leaving it to A- doesn't really do its consistency, splashability, and how much it accomplishes in an average match justice. Its set of resistances and serviceable special bulk has proven even more viable given how effective it is at checking Pyroar, Oricorio-Sensu (not to mention you invalidate FatSensu entirely with Discharge, a perfectly valuable filler option on just about any set, including AV and Specs), Swanna, and Aurorus. To expand more upon the Aurorus match-up, Aurorus immediately has to shift its gameplan around dealing with Lanturn rather than mindlessly spamming Blizzard, giving teams some wiggle room for dealing with it just by having Lanturn on the team alone. It fits on just about every playstyle well due to its sets of options for supporting and how difficult it can be to take advantage of it directly, as switch ins like Clefairy and Ferroseed (barring Hidden Power Fire) means a lot less when you consider how simple it is to turn the momentum into your favor by clicking Volt Switch into a check in a metagame where there are no reliable Volt immune answers to Lanturn. Bulky offensive sets tend to have the most amount of traction, but its utility is valuable for a majority of teams. For these reasons I feel Lanturn can earn a spot moving up.
A ---> A-
Anty's previous post sums up most of my thoughts well, but another thing I wanted to add that makes me inclined to believe that it should drop even more is that I believe that A is just simply overselling Jynx when you consider its risk-reward and match-up issues. This is especially when compared to other equally ranked Pokemon that function similarly like Lilligant and Kingler, but of which feel more reliable to use and have fewer instances where they feel like dead weight thanks to the match-up. They also have better options for working around our top Choice Scarf revenge killers between Agility and Lilligant's extra speed option in Z-Sleep Powder (which is underrated but an undeniably scary that can mean the difference between winning a game and cutting a sweep short). Lilligant and Kingler also tends to require less support for to initiate a sweep or safe kill, whereas Jynx tends to require a combination of the removal of Choice Scarf users that are above the Speed of 95 (which is pretty much the standard outside of Primeape, which speed ties), reliable Pursuit trappers, and even powerful priority users like Hitmonchan and Lycanroc. Finally, I think it's important to note that a lot of the adaptations made towards dealing with Aurorus tend to often overlap with dealing with Jynx, since their checks and counters are surprisingly similar and there isn't much difficulty picking them off with similar options when it comes to offensive pressure/revenge killing. That having been said, Jynx is still a notable threat, but I simply don't feel that it's at the level of anything below A-.
A+ ---> A
Swanna is an interesting case. On paper it has the options that would seem as if it's the perfect offensive Pokemon since it's rather fast, has a good Z move, has good set variety, and a fantastic dual typing offensively that few teams are really ready for. While it has those options, in practice, the fact that most teams are slapping one of Clefairy, Eelektross, Lanturn, and Choice Scarf Togedemaru, which are often good options for pressuring it defensive and are able to function solidly as good switch-ins to most of its sets. Furthermore, Swanna's lack of initially power is fundamentally problematic when you consider its general frailty, meaning there are quite a few situations in which it will risk dying outright in trades in which it isn't able to KO something like Regirock, Aurorus, Offensive Mesprit, Silvally-Dragon, and many other bulky stuff that can hit Swanna hard in return, making it unreliable offensive checks to a lot of these threats. It's lack of bulk also makes it much less reliable at checking the Pokemon its typing allows it to check, like Kingler and even Gurdurr/Combusken. As for its sets, Scarf is probably its most consistent set next to special Defog/Sub Flyinium Z, as it offers a fast Defogger with a bit of utility for addressing some offensive threats, but I feel that it not only retains that problem with power, it definitely has its work cut out for it when it's weak to rocks itself, hindering its survivability considerably. Physical sets are interesting, but feel rather suicidal when its main STAB is still Brave Bird, is Stealth Rock weak, and some variants go without Roost.
I'll admit that this isn't a nom that is easy to articulate well, but due to the aforementioned reasons, I feel that A+ is a bit too optimistic for its ability to do its job reliably. It seems to lack that aspect compared to just about every other A+ Pokemon, and even in A, it does often compete with Hitmonchan for hazard removal for offensive teams since its utility is amazing as well. It's still a great Pokemon, but in terms of how easy it is to put into a team and how much work it puts in an average match without a lot of support, I believe A is more appropriate.
On Kingler, I would just say just move it up in all honesty. There are good checks to it, but barring Tangela, there are favorable situations in which Kingler has the potential to come out on top due to the majority of them falling to a +2 Superpower after a wee bit of prior damage. They're also not super splashable nor have the level of viability compared to say, Aurorus checks (though Kingler checks are all decently viable Pokemon too) due to them having a mutual issue with being taken advantage of by popular threats like FatSensu and the like. I will also say that I'm not too thrilled about seeing Aurorus ranked higher than Kingler, as I firmly believe that Kingler is a better and much more threatening Pokemon in the current metagame than Aurorus right now with even better match-up versatility. I guess I can be seen as biased since I think Aurorus is rather overrated as being a slow (barring Scarf, I guess), rocks weak breaker with lots of other exploitable weaknesses thanks to its typing has way bigger implications than people realize, and if you're in a match up where you can't frequently spam your best move and kill everything (like the Lanturn example I mentioned), then that exacerbates the issue. So I'd personally advise either move it up or swapping Kingler and Aurorus' current rankings. I honestly wouldn't be opposed with either options.
