This is for the pet using classes, although, technically mages would need pets. . . bsts and necros can do fine on their own, provided there're some variables in their favor. i.e. bsts: slowable mob that hits gimp damage, necs: snarable/fearable mob, or undead.. but all pet classes would still use pets given the opportunity and the timing to..
Thats not true, at level 66 I was on par in dps with the lvl 66 Wizard, both similar levels of AA's and that was without my pet and wasnt counting the dps my DS was going on the tank.