I would say Hdin, Summ or WC barb.
My fav is WC barb, cause too much Hdin and Summs.
WC barb with OW switch frenzy (1 pts) can reckt really hard.
I did once a while back.. nothing great as stuff and I was about to finish Act3 Hell .. (lost the progression when I reinstal D2 .. rip)
It's a long way ride, but its really smooth!