I'm sorry, for that I would go 51 points in BM.
So what if you outdps me, and own me in arenas and pvp.. I GOT A FUCKING DEVILSAUR IN MY SIDECAR!
The mana is not based upon your damage. It is a general rule now to not make your mana scale with damage or healing etc., because mana doesn't scale as fast as those stats. What it does is regenerate a % of your base mana relative to your weapon speed (nullifying the need to have a fast or slow weapon to game the aspect).
What we're going to do is balance the passive regen to be around the same as if you were attacking the target.
BM hunters are extremely competitive at PvE on Live. We are trying to get Survival and Marks up to that point. It's harder to to talk abour PvP because we have made so many changes that the problems on Live may not be the same problems of LK. In short, we just need a lot more PvP testing. A lot.