D3

[Talith]

Wish i could even get through act 3 w/o getting trucked by elites. Guess i just need just a bit more gear i suppose.

Well the thing is as a Wiz you have two "options". Unlike the DH, Force armor has always given us a chance to build with the least amount of effective hp needed to survive 2 hits and die on the third, its a galss cannon style but those 2 guaranteed survivable hits coupled with skills like illusionist give you a lot of room for error. You can still go this route and maximize dps, execute a Hydra/blizz kite build and just focus on the minimum EHP needed to survive mobs on act 3/4.

With the nerf to mob damage this requirements are now even lower, however it supposedly opened a new option, if you do gear for resists you can now switch to Prismatic armor and improve those and start taking hits. Needless to say it is way more inneficient than to gear for force armor, and its gonna be expensive.

I can tell you from personal experience that for my current gear Act 1 I dont need energy armor at all, Act 2 using Prismatic armor is far better, Act 3 I'm possibly around the breakpoint, sometimes i feel I get overall better protection with Prismatic (although some big hits will drain me for more than 35% of my hp).
I am not yet on act 4 but my guess is that with my current stats I would need to switch to Force again to avoid being one shotted. Actually its possible that for Act 4 using defensive stats you will need to carry a shield.

I haven't tried pushing the last quest of Act 3 and Act 4 cause im poor and repairing will be expensive (i have been spending millions upgrading all my gems from squares to stars)