Well, you saw it in the title. I would like to know other peoples thoughts on this matter. It's pretty hard to compare them, I have to admit. Personally, I used TotH atm, because the rotation feels more fluent, I barely ever cast Cobra shot (which does next to no dmg anyway). I know DB gives focus regen too. But TotH procs a ton, so it's a toughie.
I think at 90 DB deffo, as it will scale with your gear (Mastery - BM) more than TotH will. But at 85? What are your 2c?