MUDs + D3 rock :)
So D3 is pretty fun in that endless clicking baddies to make explosions way, and I've been playing the Witch Doctor. It definitely reminds me of the Necromancer but is very unique in many ways, plus summoning the Gargantuan Zombie at lvl 18 is pretty effin' awesome. Is it just me or does he remind you of a zombie panda bear?
The one thing I don't like about the Witch Doctor is that I wasn't really using the skills I was unlocking as I levelled. It seemed like casting Spiders or Toads was pretty useless in their vanilla form, until you start unlocking various runes to add different effects to your attacks. So you can summon Toads that just do plain damage as they hop into enemies, or you can summon Exploding Toads, Poison Toads, etc.
Until like level 16 I was still using Poison Dart because all the other skills seemed weak in comparison. Now that I'm starting to gain some nice +Int items, the Exploding Toads are doing a lot more damage, and I can just summon waves of them in baddies paths while my zombie dogs and gargantuan dude take care of the rest.
I don't see a lot of other WD's in public games, though Demon Hunters seem to be everywhere. Probably a good thing, I have a feeling more than 2 Witch Doctor's summong toads and bats and zombies and dogs would slow everyone down to a crawl. Haha.