If I want /elec or /wp, I would go Brute. If I want SJ, I would go Stalker with something like /ea, /shield, or some other defense based set. /elec and /wp benefit more from Brutes higher HP and resist cap. SJ is best on a stalker although it isn't bad on a Brute. I even made a SJ/invul Brute based on a concept, and it has been fun although like level 20.
FYI, I went SJ/ea and it is one of the only builds I know I will play after hitting 50. SJ is just fun as hell and in the running for favorite melee set with Claws which I went Claws/wp Brute.