zS beat me to this because I've been at work all day :verymad: but here are some more thoughts on the new drops.
Contrary to zS, I think this won't actually be terrible. It's really unfortunate that it dropped alongside two other great Stealth Rock setters and yet another reliable spinner, and also that it comes to us in a fairly Fighting-type heavy meta, and also that it's abysmally slow. Jokes aside, I think in the right meta this could've been a really good SR setter since it's one of the few with reliable recovery and has decent enough defensive stats. Unfortunately, that meta was like 3 months ago.
I remember talking about this in the PU Discord a few weeks ago and deciding that it actually wouldn't be terrible due to its great coverage and the fact that we don't have any other offensive Flying-types in the tier. Choice Band turns it into a really powerful attacker and it's yet another Pokemon that gets First Impression, so I immediately like it a lot. Its moveset is really customizable, with things like Leaf Blade, Knock Off, U-turn, Quick Attack, Close Combat, and so much more. It also notably has Defog which probably isn't the best on it but can be a fairly decent emergency hazard control. Multiple setup options in both SD and Agility can make it a pretty unpredictable sweeper. Probably one of the drops I'm most excited to use since it's not overtly broken, but definitely not the worst thing to use.
Not sure why NU gave this to us because I thought it was pretty good up there but hey, I'm not complaining. Another offensive Stealth Rock user that isn't Stonjourner and therefore doesn't fall over to a gust of wind. Not to mention spinblocking, although two of our best spinners now beat it with Ice STAB. Nevertheless, I really enjoyed using this last gen and now it's even better. I don't think this really has any reliable switch in other than like Throh which can't actually do anything to it. As an offensive rocker with Yache Berry, it beats all spinners except for Hitmontop and all the good Defoggers. As a CB user, it has literally no guaranteed switch ins, but as a Rock Polish sweeper, its Speed tier leaves it a little lacking. This could actually get to be a problem for the tier, but I think there's a bigger fish to fry atm.
NUT
A faster Mr. Rime with the tradeoff of having less power and no recovery. It's only bulkier than Rime if it carries an Eviolite, but honestly there are so many things you can viably run on this. Boots makes it better as a spinner, Scarf lets it function as a revenge killer with its higher Speed, and Specs lets it hit surprisingly hard. That's not even mentioning its wide movepool, with both offensive and support options. Offensively, there's Freeze-Dry, Focus Blast, Dazzling Gleam, and Thunderbolt, while its support options include the aforementioned Rapid Spin, Encore, Healing Wish, Taunt, and Toxic. There's so much versatility in this mon just like there is with its evolved form, and I think even without the reliable recovery the Mr. Rime has, I think it could be just as good, if not better, due to its Speed tier alone.
Super surprised about this drop, and honestly, I'd like to see it go. Physical sets are really good, either Scarf, Band or SD, however, I think the real problem lies in the special sets. We're fairly pressed for special walls, and things like Type: Null rely on Toxic to wear things down rather than outright damage. Rapidash's Pastel Veil preventing it from being Poisoned means that it isn't affected by this, and can also switch into Toxic Spikes without worry. It has really good coverage on both offensive sides that allows it to beat most things that could normally beat it. I could probably list a million other things but I also think it's fairly obvious how good this thing is. Like zS said, if this isn't immediately banned, it's definitely going to be top tier.
Pancake mon is back. Reliable Stealth Rock setter, pretty good defensive typing, and the exact amount of support moves to be a really good member of balance teams. Only being weak to two of the remaining Silvally forms (arguably the two worst types), is great for Stunfisk. I personally think that a max Defense set will be the best but I like the idea of being able to go a little more offensive in a rocker. Stunfisk doesn't appreciate how great the current Ice-types are with Rime, Glaceon and the newest Mr. Mime-G but getting a Discharge paralysis on any of them can potentially be invaluable for another teammate. It also really likes the common Fighting-types that it can paralyze with Static and switching in fairly reliably against Pawniard, Mawile, and Manectric.
RIP webs, but that's a super niche playstyle. I don't think this'll be missed at all. I'm more curious on how it rose all the way to OU but that's irrelevant.
walled for ever.. but he can work nicely in offensive team.. bad that 
have zen headbutt and court change..
Drain Punch, Superpower, Muddy Water, Close Combat, Darkest Lariat, Liquidation
Acrobatics, Cross Poison, Psycho Cut
Liquidation
Close Combat
Play Rough, Psychic Fangs, Agility
Energy Ball
Body Slam, Close Combat
+
looking extremely good with that speed tier and base 120 spa, luckily it didn't gain any interesting coverage moves so it has no way past steel types. still looking like a top offensive threat
we knew we were getting this but idt anybody rly paid it any mind so i just wanna bring up that this thing should be getting teleport, which in tandem with regenerator might actually make it viable as a bulky pivot
jk this is broken and will be qb'd
it sets spikes and tspikes as a suicide lead i guess? never mind this thing's probably shit but u kno
our best fast offensive water if we don't keep basculin lolol. it gets flip turn!!