I'm in a similar situation. I've been an on again off again player for a while. Haven't progressed into actual tiers yet. Seems that gearing 12 man group from the beginning has been challenging. If I'm going to stick with 2 groups, I figured I might as well optimize them. Currently running:
Group 1 - warrior, zerker, zerker, pally, rogue, druid
Group 2 - monk, bard, enchanter, mage, shaman, cleric
Any recommendations on switching characters around would be appreciated. From this thread, seemed I missed the boat on necros (and the wikis may need some updates. Seems necros are much better now than what their pages are letting on). All of those characters are geared the same. Working on armor sets from cazic thule.
Thanks to all the long time players for the constant advice.
I would drop the monk and make another pally for group 2. The pally group healing cant be beat but you dont want to lose your cleric buff. Monk really doesnt add to the team since your pulling on your warrior with 3.0 epic anyway and 2handed uw is going to be your eventual goal on every toon that hits a mob.