just thought id say allitle about general class roles, their is NO pure healers, all classes which can heal do damage and other things also, think ToS in aoc etc... also im pretty sure tanks>rogue>mage>tanks in general fighting, this does not consider player skill, and theirs more class roles so ... its allot wider then that, if two great players were against eachother tank vs rogue, the tank would have an advantage- but this does not mean the rogue will not win etc...

Ofc, this is considering small scale fights, large fights would be all about group tactics, im pretty sure if your guys focus the healers, they are dead, no chance in hell of surviveing with good focus.. etc.

This is just from what ive read.. would be cool if any1 knows more info/ can correct me so we have a better picture:D