Energy orb and it's uses.

I'd rather just spam dragon strike when cooling down. (this would be stronger than barr+DS, right?) If i'm at a boss run chances are it'll be 12 second cooldown anyway.

Besides, orb can be helpful at bosses too.

Barrage+ds > spam ds unless you're on multiple targets, or if your barrage is too low. Max barrage + DS is better than spam DS, I'm almost sure.
Then again, if you use orb at zakum, then you might hit 6 arms.

I'm two levels or so away from maxing Energy Orb. I'll probably take advantage of the Big Bang resets and max it. : )

I wouldn't reccommend maxing it before ds...how will you do damage outside of energy charge?