Okay, I guess I’ll give this a go. These threads rarely amount to anything because everyone gets all worked up and nobody can come to a consensus. In no particular order within each tier:
S: Aura, Fragger, Fletcher, Sawbones, Arty
A: Phoenix, Kira, Bushwhacker, Nader, Javelin, Redeye
B: Skyhammer, Turtle, Stoker, Sparks, Vassili, Thunder, Proxy
C: Phantom, Guardian, Aimee, Rhino
This may as well be a pre-patch ranking, though. I don’t have enough experience after the changes to give a definitive answer, although from what I have seen, the patch didn’t shake up too much. Aura could have dropped a tier as well as Arty due to burst changes, arguments could be made that Fragger isn’t top tier and Redeye is too high after Grandeur nerfs and Dreiss tweaks, etc. I think this ranking is fairly accurate. About 2500 hours played.