America Chavez is pretty amazing. She has a different playstyle to many other mystics, instead of draining/burning power she somewhat controls it, and instead of nullifying buffs she does more damage for each buff the opponent has (same as Werewolf). Her ability to chain a combo into a heavy is also sweet and there are a lot of tricks to getting the most out of her kit (like using a striker to cancel out of her heavy at the right time rather than relying on specials).Werewolf is also amazing and has other utilities (like ready access to ruptures that almost nobody is immune to) and easy access to power gain. I could have voted for him just as easily as America - 1a and 1b IMO.Wiccan is the next best - in the right match-up he's without peer, but those match-ups are generally few and far between and come up less and less - nodes are now constantly saying that Ability Accuracy cannot be reduced which completely neuters him. He's still a great Serpent counter though - I didn't appreciate that until I used him in War and the Serpent mini-boss was one of my easiest fights that war.Rintrah is also great, although he's much more defensively oriented than the others.
So I ended up with Rintrah - mainly because the other 3 are in the 7* pool, and Rintrah is not. Thanks!
Rintrah does not exist as a 7-star and still being ascended and used in BG'syou might pull 7-star chavez next week...