Bumping an old thread as its of great interest to me.

I'm about to be a freshly minted mixed 80 team. (See sig)

I had a tough decision to make when I embarked and we'll see how it plays out. My thinking was that I had really no direct familiarity with other classes (my main is the lock) and the challenge of the mixed team won me over.

Now, and you'll laugh here, my challenge will be I did enjoy PvP'ing with my lock. So, I've likely traded the "easier" learning curve of a shaman team in PvE AND the potential to PvP for the challenge of the mixed team AND the bonus of having 5 different classes at 80 to use in solo play. I'll be interested to see how I'm feeling about the decision in a few months once I've cut my teeth in the level-80 game.