Do you use a set with physical WW? Any IK or just load up on Aughild/Blackthorne? I have an almost perfect maximus, wrath of the bone king, and shaefer's hammer along with a SoJ to match each, so I can go any element. My Heart Slaughter could be a little better and I don't have a physical SoJ, sadly.
For WW I use: IK hat, chest, belt, and boots, Hexing Pants, TnT, SoJ/Unity, generic amulet of whatever, generic shoulders, Strongarm bracers, and a Furnace.
I say it's the only viable element because the harsh reality of barbarian currently is that a rank 25 Pain Enhancer gem deals more damage than all of our spenders when you consider that WW (with the rune that shoots tornadoes) and Sprint: Run Like the Wind can keep the bleed up on everything on the screen at all times. Combined with perma-ancients the overall damage is competitive with Leapquake because pain enhancer also gives them a huge buff through the attack speed bonus. The other elements aren't even worth it because Pain Enhancer is the majority of damage on everything but rift guardians (where Ancients do the most) and you run into fury problems without the Ancients that give 4 fury per each individual attack which also happens to be a physical rune.
OK well I'm EU but anyway my bnetID is JezL8#2589
Ah yeah. Honestly I don't know what the EU clan looks like right now. Haven't seen anyone post about it in a while. Maybe someone will chime in though.