I hate Diablo 3. Why is that? Aren't they the same now? Linear item progression, BOA items, no build diversity, maximize core stats (main stat, Crit, IAS), same chat system. Diablo 3 is becoming a mini-WoW game, so why not play the real WoW?
WoW is an MMO, so it actually has a social aspect. I guess people prefer to grind for $ in their parents basement all day and not have to interact with people.