In my opinion, barbs only need masteries and the skill which works best in the weap they use. With the 3 warcries, shout. Battle Orders and Battle Commands.
Throwing Axe Barb...
Max out Throwing Mastery
Max out Double Throw
5 in the 3 warcries.
Rest in skill of your choice... (Frenczy)
Good equip (Ask N_ for that, he's cool...)
and your done...
thats what? level 55? not bad eh...
Axe Barb
Not a clue...