This gives 3 hits even on a single target. Decent damage for a fury generator. The 3 hits give more fury Weapons Master and more chances to trigger Swords to Ploughshares effect. I chose bash over cleave because this would do well even against a single target and provide some consistency.
Hammer of Ancients (Birthright)
Despite focusing on health globes this was not an ability I felt I needed to have. But after looking through all the fury spenders I wanted something that I could spam when needed and I would get some sort of function out of. The damage is good, it has increased crit rate, and a higher chance at health globes. It costs low enough fury that about every 2 bashes will allow me to use it (and then some). It hits a small area AoE but... it is still an AoE. Makes a good compliment to Bash.
Battle Rage (Swords to Ploughshares)
One of the primary healing mechanics for the build. I am not quite sure how well it will stack up in the long run. The only way will be able to test it out. My idea of it is that it will give me decent healing against groups of enemies when buffered by Revenge's healing and will give very good healing when I am only fighting a single target as well. The increased crit and damage is always useful as well, especially the crit to trigger Swords to Ploughshares and Birthright.
Revenge (Best Served Cold)
Used for increased damage and healing when there are mobs of enemies around but also to gain increased hit to trigger Swords to Ploughshares and Birthright. More crit means more chances for health globes. Ideally this would be triggered at least once every 12 second.
War Cry (Hardened Wrath)
More armor to make every point of health count for more. Also to help those in my party to survive a bit longer.
Wrath of the Berserker (Thrive on Chaos)
When I was coming up with the idea for this build I had no intention of having this skill be a part of it. It can hopefully stand on its own without it. However the increased attack speed, crit, and movement are all things this build can use. The dodge is also useful even though it will make Revenge proc less. But as long as revenge procs about every 12 seconds that is fine. Theoretically this buff would be able to keep up purely from the fury generated from Bash and Weapons Master using a Mighty weapon as long as there was at least one enemy to beat on. The attack speed and movement of the buff would help keep that doing. The increased attack rate and crit also help create more health globes. If I took one ability out of this build it would be this one (followed by Weapons Master) and replaced with one of the movement abilities. In which case I would likely chose Ruthless or Nerves of Steel to replace Weapons Master.
Pound of Flesh
More health globes, whether it effects Birthright and Swords to Ploughshares or not. The most important part of it is doubling the healing of all health globes.
Primarily to fuel Thrive on Chaos but also to create a lot of fury to spend on Hammer of the Ancients.
Tough as Nails
To make each point of health count for more. Could be replaced by Nerves of Steel if it gives a better overall bonus to armor.
So there it is. The idea behind it all is for the barbarian to wade in and keep on the enemies at all times. Perhaps with a str/vit heavy build. He doesn't need to dish obscene amounts of damage but he still does dish out a decent amount. He receives health back not from deaths but the orbs, and with his high armor and health he is able to survive where others might not. His focus on health orbs instead of abilities that give a % of health back for each target lets him maintain his health even against single targets. His AoE attacks (Revenge and Hammer of the Ancients) give him even more health orbs against multiple enemies... in addition to Revenge's heal.
This would let him solo fairly effectively though I won't know how well till Inferno but it would also be very useful to his groups as any nearby party members would also be getting healed, and even getting additional resources depending on their passives.