Because Rogues require backs and the program is not perfect, you get far more dps boxxing a Monk. While my rogue is trying to position itself my Monk is already trying to rip agro from my SK.Why stop at 3?
SK, CLR, ENC would be Super Strong - Holy Trinity!
SK SHM, BRD also fits the holy trinity.
SK, SHM,ROG Love it
SK, SHM, MAG ...COTH! and learn to pull singles dumbass SK!
SK, SHM, RNG meh..but OK it has potential
SK, CLR, WIZ - Wizards dont get hopeless until Later on in the game
Everything is going to work...But some things in early game are much better..Ports...Coth...CC.
I dont think you can really go wrong, so it just depends on How YOU want to play.
My main grp on live servers is currently: SK, WAR, SK, SHM, ENC, CLR - which is a strange combo.
It really doesnt make much difference. Maybe I dont have the best DPS in the game....but The other day I had 17 DK Blue Mobs in Camp and it was just like ok then! XP here we come!
If you really want the standard grp for ALL content - then go with the Holy Trinity.