I really barely see any witch doctors. Of course, I play solo most of the time, and my experience is limited to just playing with my friends, but Demon Hunters are also the most prominent.
And this game is too ridiculous @_@ It's not that it's "too hard" or anything, but everything just one-shots me now or kills me so quickly, and I don't want to sacrifice any of my wizard's precious damage for vitality or resistances. :c