Any Barb that isn't in melee is trying to be too cute/playing away from the strengths of the class.
There are enough items that trigger when Bloodied to jump right into the fray, not coincidentally drawing attention away from the rest of the party which I think is the undocumented strength of the class.
The downside of Frenzy can be an upside if it makes the Barb an AI target, especially when that target is a trap that becomes a far harder to damage when Bloodied. Pollaxe might be good to get some engagement if the fools who rushed in change their minds, and being alone even Wahai Poraga could be good. Both hits would trigger Carnage with all applying Spell Disruption, right?
I'd probably go all-in with Streetfighter to use Escape for positioning, but straight-up Barb would get Leap soon enough along with the good passives and ability upgrades.