If Blizzard's promise to deliver on class identity in a positive way actually holds true in Legions, and classes feel different but fun-
And also, if there comes to be a certain level of balance in the first season of Legion?
This is all hypothetical, especially the latter, as with the entrance of Demon Hunters its going to be a shitstorm.
Tl;Dr assume the game was based on better class identity and balance didnt effect what you played. Just what you thought was fun or cool. What class would you be?