Discussing the proposed changes...
Zangoose[/B] DOWN from A rank to B rank
There are a lot of Fighting types in RU, and the Steel-types can usually take a Close Combat. I think it should be B-rank, though I need to see more Zangoose for me to get the true grasp. However, the main problem is that it is so difficult to get the Toxic Boost!
Because im writing the zangoose analysis, i have had to use it for a few battles to see how it does, and i honestly think zangoose is a solid A rank. What i usually did to get the toxic boost with zangoose was to either double switch him in, use u-turn to get him in, or send him in on a weakened opponent after a KO, i think i got the toxic boost in every match ive played so far actually. Most of the fighting types in RU are being sent downhill thanks to the introduction of cresselia, and NONE of them can switch in on zangoose at all, actually. In fact, all of them except hariyama and physically defensive poliwrath are OHKOed by toxic boost facade, and take a lot from close combat even before the toxic boost. here are come calcs
toxic boost zangoose facade vs 0/0 Gallade: 493 Atk vs 166 Def & 277 HP (140 Base Power): 447 - 526 (161.37% - 189.89%)
unboosted facade: 329 Atk vs 166 Def & 277 HP (70 Base Power): 150 - 177 (54.15% - 63.90%)
zangoose outspeeds so gallade cant come in on zangoose at all, and sure as hell cant revenge kill unless its scarfed or something. Also, toxic boosted quick attack+unboosted facade should be able to knock out even scarfed gallade!
toxic boost zangoose facade vs 40/0 Hitmonchan: 493 Atk vs 194 Def & 251 HP (140 Base Power): 382 - 450 (152.19% - 179.28%)
unboosted facade: 329 Atk vs 194 Def & 251 HP (70 Base Power): 127 - 151 (50.60% - 60.16%)
toxic Boost quick attack: 493 Atk vs 194 Def & 251 HP (40 Base Power): 109 - 130 (43.43% - 51.79%)
Admittedly hitmonchan can revenge kill with mach punch if its at full health, but it cant come in on zangoose regardless if it has toxic boost or not, because non toxic boost facade+toxic boost quick attack knocks it out
toxic boost zangoose facade vs 0/0 Hitmonlee: 493 Atk vs 142 Def & 241 HP (140 Base Power): 522 - 615 (216.60% - 255.19%)
unboosted facade: 329 Atk vs 142 Def & 241 HP (70 Base Power): 175 - 207 (72.61% - 85.89%)
boosted quick attack: 493 Atk vs 142 Def & 241 HP (40 Base Power): 150 - 177 (62.24% - 73.44%)
lee doesnt fare nearly as well as chan, but at least fake out can hurt goose a little bit i guess...
Toxic boost zangoose facade vs 0/0 medicham: 493 Atk vs 186 Def & 261 HP (140 Base Power): 399 - 469 (152.87% - 179.69%)
unboosted facade: 329 Atk vs 186 Def & 261 HP (70 Base Power): 135 - 159 (51.72% - 60.92%)
boosted quick attack: 493 Atk vs 186 Def & 261 HP (40 Base Power): 115 - 136 (44.06% - 52.11%)
Medicham also has major trouble coming in, it can come in on an unboosted close combat at least, so ill give you that, but also note that zangoose outspeeds every set except scarf :/
toxic boost facade vs 252/252+ Poliwrath: 493 Atk vs 317 Def & 384 HP (140 Base Power): 234 - 276 (60.94% - 71.88%)
unboosted facade: 329 Atk vs 317 Def & 384 HP (70 Base Power): 79 - 94 (20.57% - 24.48%)
unboosted close combat: 329 Atk vs 317 Def & 384 HP (120 Base Power): 90 - 106 (23.44% - 27.60%)
Poliwrath actually has a decent shot of living zangoose's onslaught if the first hit doesnt factor in toxic boost, but it will be left with just a sliver of health left, and just keels over to zangoose if it already has the toxic boost ;-;.
toxic boost facade vs 0/252+ Hariyama: 493 Atk vs 240 Def & 429 HP (140 Base Power): 309 - 364 (72.03% - 84.85%)
unboosted facade: 329 Atk vs 240 Def & 429 HP (70 Base Power): 103 - 123 (24.01% - 28.67%)
unboosted close combat: 329 Atk vs 240 Def & 429 HP (120 Base Power): 119 - 140 (27.74% - 32.63%)
Im not 100% sure, but i think hariyama has a small chance to live non toxic boost+toxic boost, but the vast majority of the time its getting 2hkoed, and this is the defensive set...
toxic boost facade vs 0/0 Primeape: 493 Atk vs 156 Def & 271 HP (140 Base Power): 475 - 559 (175.28% - 206.27%)
unboosted facade: 329 Atk vs 156 Def & 271 HP (70 Base Power): 160 - 189 (59.04% - 69.74%)
boosted quick attack: 493 Atk vs 156 Def & 271 HP (40 Base Power): 136 - 162 (50.18% - 59.78%)
Primeape cant come in on zangoose at all either sadly, but primeape is actually an okay check if you play very carefully, its the only fighting type that outspeeds zangoose even without a scarf, although CC defensive drops will really hurt...
About the steel types, steels are decent checks for zangoose if you predict correctly, and zangoose actually needs stealth rock+1 layer of spikes to 2hko steelix with close combat even with toxic boost, but some of the other steels dont fare as well, for example, zangoose can actually 2hko escavalier with facade, and pick off a durant trying to switch in with quick attack after rocks+1 round of LO recoil.
Toxic boost zangoose facade vs 252/0 Escavalier: 493 Atk vs 246 Def & 344 HP (140 Base Power): 150 - 177 (43.60% - 51.45%) 99.41% chance to 2hko after stealth rock.
Zangoose does have some flaws, though, which are why he isnt S rank/high RU already (i dont even think people realize zangoose exists with its low usage >_>). It has trouble switching in thanks to its fraility, and toxic orb puts it on a bit of a timer, but there are at least two other A/S rank mons that also have trouble switching in off of the top of my head, and even with a timer, when it comes to something with as much damage potential as zangoose, its not that hard to get 3 KOs in 3 turns, especially mid to late game. Zangoose has a lack of safe switch ins (spiritomb being the only one in RU i can think of off hand, lol). But it can be played around with smart switching, for example predicting around zangoose with a steelix and say misdreavus, lure in a night slash with misdreavus and send in steelix to take the hit, same thing with steelix and close combat, but do note that SD zangoose can take advantage of this (but it has to choose between being able to be revenge killed or hitting misdreavus, so maybe not the best example, lol).
(wow, this post was a huge TL;DR, lol, but basically what im saying is that the majority of the fighting types in the tier cannot directly, or possibly even indirectly deal with zangoose, also note how the majority of the RU fighting types are (or should) be going down in usage thanks to the new introduction of cresselia, making zangoose's life even easier because it has a good pivot to fall back on! steel types are a legitimate problem, especially steelix, but can be worked around with proper prediction, and zangoose can actually 2hko some resists with its facade. Zangoose is incredibly hard to switch in to thanks to its almost over the top power and good coverage, but it does have some flaws, which are why it isnt placed above A, i would be okay with moving goose down to B if you really want it, but i think hes A worthy personally ;-;).
With the other things you mentioned in your post, i agree with all of them, nice input =D! I was also considering moving Rotom-C to A, and ill be sure to add it to the new proposed changes next time we change ranks! Thanks for your contribution, Swamp-Rocket!