Two "controversial" nomination who have been floating around my head for a little bit but I think it is worth posting
Qwilfish to A-:
After Gligar's departure Qwilfish has become the Fighting resistance of choice in many of my offensive and bulky offensive teams due to some special and incredibly useful qualities that it has. First of all its Defensive set is able to actually
punish the Fighting-types it has so much ease switching into by setting up Spikes and Toxic Spikes which a lot of the time are bound to stay on the field for pretty much the rest of the game considering how easy to pressure the common Defoggers are and the second one is its ridiculously
good typing that let's it set up hazards on the various Fighting types (Cobalion, Pangoro, Hitmonlee, Hitmontop, Virizion (sort of), Emboar) as well as Pokemon against which offense traditionally has an hard time such as Alomomola, Aromatisse (4hkod most of the time which is cool), Registeel and its access to
TAUNT which is pretty much unique for an hazards setters in RU meaning that setup sweepers don't have that much of a field day while you stack. And there is also the suicide lead which is pretty much as good. The
reliability with which Qwilfish stacks so beautifully and reliably and the fact that the amount of the free turns given by Qwilfish is pretty much zero makes me think that Qwilfish is ready to join the A ranks.
Cobalion to S:
I guess some of you might disagree with this one but I think that after Gligar's departure Cobalion has become one of the beast Pokemon in the tier. It has essentially
two sets buth either one is among the best in the tier at what it does. First of all the
Support set provides offensive teams a ridiculous amount of
momentum every game thanks to access to
Key moves such as
Taunt and
Stealth Rock as well as great
bulk on the physical side and decent special bulk. Access to
Volt Switch as well as STAB Close Combat to threaten its absorbers (Steelix and Rhyperior take a decent chunk let and anything else is just free momentum outside of like physically defensive Mega Camerupt and Quagsire?) is incredibly useful for giving free switches to wall breakers such as Specs Meloetta and Tyrantrum and the key resistances that it offers to Dark-, Normal-, Steel-, and Rock-type attacks (among others) are really hard to pass up. The second great set is Substitute SD that, outside of being a favorite of mine, is also very very hard to stop
taking advantage of the numerous passive Pokemon in the tier (Mola and Amoonguss among others) to then punish the opposing team with a good dual STAB and great
speed. All those points made and looking at the definition of S rank:
Reserved for Pokemon who can sweep or wall significant portions of the metagame with little support, and Pokemon who can support other Pokemon with very little opportunity cost ("free turns"). Also the home of Pokemon who can easily perform multiple roles effectively, increasing their versatility and unpredictability. If the Pokemon in this rank have any flaws, those flaws are thoroughly mitigated by their substantial strengths.
I think Cobalion fits the bill perfectly.
In addition to this I just wanted to say that I support putting
Steelix in A+ rank as it is one of the best Stealth Rock users and Bulky Setup Sweepers in the tier and
Garbodor to be added to the
Cs as it is a Qwilfish that deals a bit better against special attackers and Grass-types (OHKOs Virizion with 0 Attack n_n) and is solid in general.