This is my hesitation with barb too. HotA is solid, leapquake is fun, and Fatal Blow is satisfying, but upheaval looks dumb and I don't like ww or bleeds.
Compared to the sheet build variety of druid, that's not a lot of variety, though to be fair a lot of the high performing builds rely on 2+ uniques (tempest, crone, waxing gibbous, vasily's) to really function.