*IK* Barbarian build

[Abaddon]

I know this is PvE build and it's exactly what I want :)

I found some builds like these ones:
20pts Battle Orders
20pts Mace Mastery
20pts Whirlwind
20pts Shout
1pt Bash (Prereq)
1pt Berserk
1pt Leap (Prereq)
1pt Stun (Prereq)
1pt Concentrate (Prereq)
1pt Leap Attack
1pt Howl (Prereq)
1pt Battle Command
1pt Natural Resistances
1pt Increase Stamina
1pt Increase Run/Walk Speed
Rest Iron Skin

and

10 ww
20 conc
20 shout
20 bo
20 mastery
10 pre-reqs and support skills.

I prefer second one, but I need guys your help. What do you think what build should I use? I'm asking as a newbie to pros

So please give me your thoughts about builds. Don't forget to argument your choice

P.S. It would be nice to hear what sockets are the best for this set

[Blue]

I would do the conc one if it's PVM
First one if its PVP

[Abaddon]

And how about sockets? If I use conc build I won't need 2 Shaels (30 IAS) in to the maul... I'm confused about that.

Any ideas what should I put into Hlem, Armor and Maul? :/