I'm on inferno.. and currently using this.
http://us.battle.net/d3/en/calculato...ViU!ZXc!bZZYac
its my WD tank setup.
highly gear dependent, but then again it IS inferno. I use the strongest Life on Hit + Life Leech weapon I can afford, then pile on defensive stats as much as I can, including INT where I can.
every skill in my book is basically defensive.
firebomb for health leeching,
soul harvest is the most important for damage increase. its a great health restoration move too.
zombie dogs die pretty fast, so I usually summon them to blow up straight away.
acid cloud to weaken the enemies attacks + a bit of health leech.
and spirit walk to break out of CC statuses and get out of a tight situation.
the general strat is hoarding all the mobs together to slowly AoE to death, which is somewhat trickier in inferno, but i might adjust it along the way.
my biggest problem isnt surviving but dealing damage fast enough lol
mainly farming hell for money and better gear first... and can pretty much straight tank everything there.
edit: oh except desecrators, arcane and fire chains, which require some degree of movement. plague not so much.