ive only played wow,rift & swtor.
wow comes out on top for me followed by 'swtor' and as last 'rift'.
and as silly as it sounds to most, main reason for my decision are the stealth classes for me.
i loved the rogue in wow from the day i started playing,its a pure melee dps class.
and even after trying every other class extensively i never had more fun than playing a rogue.
the problem in swtor & rift is that they made the assassin in something it shouldnt be (tank,sorceror,healer....) and when you opt for the pure melee dps you end up with a halfassed
class.