Best MB Class?

[Wubsie]

Fun is subjective and no one can tell you with any certainty whether you will enjoy a specific class or spec.

Personally I'm quite fond of melee, so DK is one that comes to mind immediately. Plausibly with a healer thrown in. Pallies are decent, and as all prot they're very, very durable.

As far as ranged, I would say hunters, boomkins and maybe locks (not sure how they are doing after the self-healing nerfs) are ones you could look at.