The following barbarian build focuses on survivability, dealing damage and self-healing. This build is great for tanking/staying alive for a long period of time. When you get to the later stages of Hell and Inferno, monsters will deal massive amounts of damage. Focusing on reducing damage and healing can really help you progress through these difficulties.
As you obtain better gear for your barbarian, you may want to switch out some defensive Skills for Offensive ones. Keep swapping Skills until you find the perfect build for your Barbarian. Be sure to check out Force Strategy Gaming on Youtube for more Diablo 3 tips/guides.
Active SkillsFrenzy (Sidearm)- Solid single target damage
Furious Charge (Dreadnought)- Extra healing
Revenge (Provocation)- Extra healing
Wrath of the Berserker (Insanity)- Extra damage
Ground Stomp (Wrenching Smash)- Stuns & Pulls enemies
Ignore Pain (Iron Hide)- Reduce damage taken
Passive SkillsNerves of Steel- Increased Armor
Tough as Nails- Increased Armor, Increased Thorns Damage
Superstition- Reduced non-Physical damage, Extra Fury