I don't agree. Barbs have terrible survivability. Low deflection and everyone knows what a joke constitution/endurance is. Most min max builds dump it for something else like more damage or deflection. Barbs have low deflection and are very poor at tanking. They have pretty poor accuracy as well. They don't crit often at all, and mine misses strikes often. They have penalties to accuracy for carnage. Most of their talents and abilities are useless. Brute force, threatening presence, yell, shout, wild sprint, vengeful defeat(relying on being taken out of a fight to do damage isn't smart with or with out second chance)
Heart of Fury is what? A once per rest attack that adds 25% damage? Barbaric blow is ok, but with barbs low accuracy I either don't land it so it is wasted or I don't crit. Barbs seem better off with just normal damage increase modifiers imo. Thick skinned is a meh defensive ability. Accurate carnage and barbaric blow are the only talents worth taking imo. Stalwart defiance seems good but savage defiance is so good that it doesn't need the added bonus. What good will 10 extra deflection do me for 10 seconds while I am able to regen all my endurance at the same time? And greater frenzy only adds another 6% damage to frenzy.
His best abilites are blooded. bloodlust, frenzy, savage defiance, and OSA. Frenzy and Savage Defiance are once per encounter. Frenzy adds a little damage but its best attribute is the added attack speed. Defiance helps with survivability. Bloodlust, blooded, and OSA are all conditional. Blooded you must be under 50% endurance to gain 25% damage, that is ok I wouldn't say it's great because I don't want to be under 50% endurance and once I try to heal I lose my damage bonus. Bloodlust is good but there must be at least 3 opponents for it to be worth anything, since you have to kill 2 yourself with a third being around for you to hopefully use this buff on. And OSA is his best skill. Adds 20 damage flat currently. But you must be engaged by at least 2 enemies. And you are restricted to melee essentially. Rogue can do melee or ranged. And it seems much easier to ensure a Rogues conditionals are met in combat especially with a party.
That said I really do enjoy the Barb in this game. Hope some of his talents and abilities are looked at and changed for the better as I am sure a lot of other classes could use the same treatment.