Mine:
Melees
Retri Paladin : 9
Rogue( combat+Ass ) : 4 (too heavily dependent on crits=combo points to be 90%+ effective, IMO)
Enh Sham: 7
Fury Warrior : 3 (rage means castsequences are much less predictable)
Cat-Druid : 4 (same as rogues re:crit=combo points)
DK Blood : 5 (similar to rogues/kitties in that if you take the ability that converts runes into death runes, it isn't consistent)

Range :
Elemental Sham : 10 (yeah, the most played and, thus, most understood class; obvious)
Mage: 8
Warlock : 8
Hunter: 9 (I've done survival and BM with excellent results so far, though survival is much harder to get 90%+ out of; BM = super easy; haven't tried MM that much yet)
Shadowpriest : 7
Druid Balance : 5-6 (agreed; eclipse drops these almost down to where rogues/kitties are)

Tanks:
Paladin : 10 (again, another ultra-popular and, thus, ultra-figured-out class)
Warrior: 7 (better than DPS warriors for rage but still not as easy to macro as the other tanks)
DK : 8 points (once you get some gear, I'd agree; IMO they're around 6 until then)
Druid bear : 9 (only reason they got a 9 from me is that they don't generate as much AoE threat as paladins; otherwise, pure EZmode tanking)