Right now, 56/0/5
http://www.wowhead.com/?talent=Ibxr0uMAoiqoIstZV is pulling down the best DPS, IF you can keep the rotation up without clipping dots. However, if you have even a little lag, gtfo. It's hard and I want to learn the rotation better, but there's nothing worse than lagging and losing haunt AND UA (which happened to me most times I tried on the dummies in Org)
I'm currently 0/5/56,
http://www.wowhead.com/?talent=IZ0xZVchqr0uAsAsot which is easier to keep up, but still not as simple as SB spam. It's ok for PvP, but I can't wait to get SL.
Meta is hit or miss right now, IMO. In PvP either I got instantly banished by a sneaky lock or I raped face until the effect wore off and I was owned by the billion melee on me. Testing on the dummies, it was solid, but not as good as the other 2, like pre patch, demo is the tree for people who don't want to respec for raids and PvP.
The only issue I can see with your build right now is that melee crits are raining down all over the place, so you might want to sacrifice from the destro tree to put full demonic resiliance, if you plan on not getting owned QUITE so bad in bgs. If you wanted to raid, Demonic Pact is also the only one of our buffs/debuffs that doesn't get replaced by a better one from another class (although for our guild CoE is good until Div gets her laser chicken leveled up, and then she'll double our DPS with 1 button spam and a better CoE buff /end QQ about laser chickens)