Don't mind Fur, he's on a wiki spree today ;p

To be fair though these decisions are ultimately up to you:
Question: Will X/Y/Z work?
Counter-Question: Is/will it be fun to you?
If answer = no, don't do it
If answer = yes, go for it! =D
If answer = maybe, try it, you got nothin to lose.

It all falls to your specific playstyle and what you enjoy; I personally hate mages and thus will never roll one, they're too boring to me. I also have enough trouble keeping up with matching classes so till I'm more sure of myself, I stick to single-class multibox teams. Ask yourself, would you enjoy the melee classes? Having to re-follow after every fight, and sometimes multiple times Mid-Fight too? Chasing down runners with melee sound fun? Give it a try, see if you like it, if not, don't need to go back