So, I had some time to go through some of the rankings and make a list of things I want to change and/or things I want to hear thoughts on. Right now, I only have noms for S through A- ranks, but I'll get to the other ranks soon enough.
Okay, so here we go. Sorry in advance for long post. n_n
First off, I want to see Support Mega Altaria in A+ or maybe even A. This set originally found a niche on stall and balance teams, but those teams have better options to utilize for megas (stall has eye, balance has venu and sciz). Additionally, relegating M-Alt to a support role when it has such incredible offensive presence is silly, especially when we have stuff like Clefable who can fill that same support w/o taking up that mega slot. In the same vein, I could see Defensive Dragon Dance Mega Altaria moving down, but it does seem a lot more useful on the whole in that it can break fat teams with Roost + Refresh/Heal Bell.
Next, Bulky WoW Mega Charizard X should be in S. This set has the ability to wall entire teams, and I believe it to be almost as effective as offensive DD sets.
Assault Vest Bisharp is a relic of the past and has what seems like an extremely small niche in half-checking the Latis. I think the fact that I haven't seen this set in a while might be enough indication that it's time to remove the set.
I think that Offensive SR Garchomp is nearly equal in effectiveness to the tank set, especially when you consider options like Lum Berry, Yache Berry, and Roseli Berry to ease set up. Chomp's 102 speed tier has become somewhat relevant again with all of the base 100 wall breakers eating the tier. Also has a good bit of surprise factor as opponents are likely to assume it's the tank set on a lot of teams. Move to A+ imo.
Choice Scarf Excadrill should move down to B+. It's just far too exploitable with the crappy moves it gets locked into and the fact that things like tank chomp and hippowdon exist. I moved it up a while ago because M-Alt was kinda running the tier, and being able to revenge it at +1 was a valuable niche, but with Zard X being the dominate mega, I just don't see this set staying in A-.
Fast Support Heatran isn't as effective as it once was. It just needs all the bulk it can get to reliably fulfill a support role because it doesn't have recovery outside of leftovers. Plus, it's speed tier is kinda shit for an offensive support mon, so I could see a move down to A-. However, I'm on the fence about this one.
WCoP has highlighted the usefulness of Manaphy's Rain Dance + TG set, which is quite effective at dismantling bulkier teams. The reliability of the set is what puts it in A+ for me. Mana is blessed with great bulk, fantastic typing, and a movepool to boot, so you almost have to be able to hit it super effectively if your team is slow, and even then scald and it's 30% burn chance can put a damper on this too if something like ferro is your answer.
Haven't seen a Choice Band Talonflame in months. Talonflame just has better options to utilize - i.e. literally any other set. Rocks weakness and constant recoil weakness just make it worthless. I want to remove it.
Specially Defensive Mega Charizard Y lost a big target when Lando-I left, and Zard Y wants speed and special attack investment to do what it's best at: wall breaking. SpDef CharY sits in B+ right now. Should it go lower? Should it be removed?
Specially Defensive Rotom-W also just seems like a pointless set to me, especially considering that the defensive set can run some special defense if it needs to anyway. I want to remove this as well.
I think that the the rankings for Starmie's sets should be flipped. Defensive Starmie should move to A. Right now, defensive starmie is hands down the most reliable spinner in the tier. It's got an incredibly useful speed tier; a rather useful defensive typing; access to scald, twave, toxic, reflect type, coverage to boot; AND reliable recovery. Hands down mie's best set. It's going to A. That being said, Offensive Starmie should move down to A-. The offensive set is plagued by longevity issues due to LO recoil and susceptibility to hazards, and it often has to forgo recovery for coverage. Also, it's rather weak for an offensive mon unless it gets the analytic boost, but oftentimes mie spins on the switch, effectively nullifying any usefulness its ability may have had. Finally, it's suffers the same pursuit weakness that the defensive set has, but the defensive set actually has enough bulk to beat some pursuit trappers.
Scarf Tyranitar should move down to A-. Scarftar is just too slow and weak to warrant A rank in my opinion. It's also extremely predictable bar the choice between Fire Blast/Ice Beam. It also yields set up opportunities for a number of threatening mons no matter what move it gets locked into. Saving grace is good bulk paired with sand, but five turns is hardly enough for Excadrill to do much sweeping w/o sacking your TTar. The support set is significantly more useful with item options like chople berry and smooth rock, move options like stealth rock and thunder wave, and added bulk, all while still maintaining pursuit trapping utility. On a similar note, I'm not too confident in the position of Band Tyranitar in A-. Thoughts?
And my final nomination, SubSeed Serperior should be initially placed in B or B+. The set has a good amount of utility against a number of bulky teams, so I think it deserves its own ranking.
Okay, so that's it for now. Let me know if you have any thoughts. I'll take a look at lower ranks soon.