Uh, don't remember exact build right now. It was Rend-based with some fury generator + 4 shouts with different secondaries (they stack), WotB, BR and ancients, but without WW due to dsyncs.

But because you have decent lvl 70 characters, you can do 2x2 or 3x1 to speed up boosting by doing higher difficulty tiers. At least I did it to get my monks to 70 quickly after I failed with barbs.