Found this for Barb apparently it's easy on high Torment's (4,5 & 6)
Build:
http://us.battle.net/d3/en/calculator/barbarian#bZcRSP!WhY!ZZZcbZ
Build explanation:
Rend bloodlust - keeps you alive! you are usually surrounded by monsters so you will be healing a lot *Rend works the same as pre 2.0, if it crits it will do massive damage for the whole duration*
Battle rage blood shed - Makes your HOTAs do massive AoE
Charge - main fury generator and mobility skill, this will fill a 150 fury bar instantly with a good charge
Wrath Insanity - For bursting elites, Slaughter is also good but I find I like the higher single target burst of Insanity
Cleave reaping swing - secondary fury generator
HOTA - Smash - for smashing! If you can get fire damage% on your gear that will make this do even more damage!
Passives:
Unforgiving - Optional, I like the fury
Animosity - A must have, fury is a luxury in 2.0
Weapons Master - Nerfed to only 5% crit chance, but still worth it IMO since even in WOTB a good barb with SOJ will only have ~90% crit chance with HOTA with a full fury bar in Wrath, and its not often you have full fury or are in Wrath even.