For example, how viable a Wiz > Pyro c2 > Cryo c3 is compared to a elementalist c3 or a sorcerer/necromancer? I made a hybrid skill build of dps + cc for party pve I would like to try at the next cbt. Any suggestions?
Depends on the skill. Some scale poorly but are worth leaving 1 point in. And there are some that start out bad but scale incredibly well.