Hybrid builds aren't that bad. You just need to find hybrid build that is good enough in both modes. I myself using hybrid skills setup. 5/5 charge, 3/5 taunt, 5/5 roar, 4/4 stoneskin, 4/4 combat fury and 4/4 shield strike. I have no problem holding aggro, unless full PvE +10 dmgers in my pt. And also I have decent amount of stun and dmg in PvP. I bet this is the best build barb can have overall, because I haven't lost to any barb using this build.