Inferno mode is seriously a pain in the arse.
I understand now why a lot of the hardcore community consider hell act 4 as the hardcore endgame. Getting through even act 1 inferno without dying seems like a ridiculous uphill battle.
They will be fixing the one shot = death issue in a future patch. Though, don't expect to survive two shots. :p
Technically any wizard can take 3 hits as long as they have energy armor runed with force armor (this is excluding diamond skin) with enough health (after they've nerfed force armor) However they are *plenty* of things that can still kill you in that time frame.
The butcher in inferno mode, in comparison, is easier than the normal yellow/blue inferno mode mobs.