Dh is pretty easy to play, has a lot of mobility which makes the class pretty fun to play imo
Druid is nice for pvm, since you have the ability to play every role in the game, you can even decide between melee and caster.
Rogue is nice if you wanna outplay your opponent, not as much fun in pve for me tho. Would say its better to play rogue if youre more of an experienced player