I play both teams : 3 elems shamans which is good and also 3 mages : one is frost for the control and 2 are fires for more dps. The 3 mages have also some points in arcane : the frost up to improved iae and the 2 fires up to POM. So, when Im questing, if I find a good place, I cant do some aoe grinding. Also for pvp, the fires have POM pyroblast under their sleeves.

All in all, 3 mages are more squishy but the pve play is perhaps more dynamic, with more options. The 3 shamans are levelled for pvp later and will be joined by another duo healadin + another shaman.