so ive only played marauder, since beta. and this is my thoughts.
i have killed 2-3 enemies at once, in annihilation, 1 sorc 1 sin and a powertech, but ive also been torn to pieces from each of those classes individually.
and everyone is complaining that marauders are OP, yes i agree that we do have advantages, but as one said before, you can counter them, undying rage, stun them for 6 sec, dont hit them, cloak of pain, stun them again.
so my point is, a person who knows what he does can kill most marauders, and a marauder that knows what he does can kill most people, so know thy enemy and you will be victorious.