ok after reading mucb on the forums and my experience from beta 7 thinking of making 3 roles:

solo to 32: MM/NB/Rang higher points in MM, then NB and 0 in ranger for pet
solo after 32: same classes but respected to get higher ranger pet MM/rang/NB

group: going melee: either NB/Sin/RS or NB/BD/RS open to ideas on which is a more viable combo

raid: back to ranged: MM/Ranger/RS (for some durabilty).

I haven't looked at doing tree yet till i figure for sure which classes. I am open to suggestions