Post by Kopec
I prefer http://www.wowhead.com/?talent#j0EGZhxx0AbIof0buzAo0x:Tak0Mm
This build uses HB and BB for AOE tanking and can hold threat on Single Target using OB. I've added the HB glyph, as in my opinion the extra GCD you get by not having to apply FF then use a rune for no damage but to just spread the disease (Pest) is priceless. For single target you can set up as HB>OB>BS>BS||OB>OB>OB||OB>OB>BS>BS (repeat) and rely on the rime procs to keep FF up, while using FS to dump when you need to. For AOE tanking, HB>BB>BB should cement the mobs on you. If you need a bit more, drop the last BB in that rotation and put up DnD instead.
Although it doesn't have the pure Effective Heath as Blood does, it makes up for such a lack by taking less damage and having more avoidance. In all, a very effective spec.
Post by Thror
This is my AoE spec. I use it for Onyxia, Emalon, and generally... fights with a lot of adds. Pretty easy to do 9k+ dps on onyxia, meh.
So, its the usual 5/8/5 setup with a little blood added into the mix... the tier2 blood talents are just sexy, all of them. Frost has an extreme RP consumption, even the 3/3 in Scent doesnt satisfy my RP needs. In frost i have the usual talents... also Deathchill which is a very powerful snap aggro tool (got it macroed with HB). Then there is Merciless Combat... when the bosses are under 35% hp, they usually get into the phase when your raid blasts Heroism and wants to nuke them ASAP, and thats when the increased damage comes in handy, for extra threat. Rime + Glyph of HB = permanent Frost Fever. Just refresh FF with Rime procs. Acclimation sucks and is not worth my points. Other talents should be obvious, and self-explantatory. No points are spent in Unholy, worthless.
I dont use rotations. I just click whatever shines, while keeping up diseases and preferring RS over FS, and Obliterate over everything else. RS is macroed to everything. For AoE, DnD+HB+BB+RT+BB = glue. When you are done with that you can go afk until the things die (slight exaggeration).
I am now thinking about removing Merciless Combat and taking Endless Winter. My TPS is so good, i am usually at a 40% advantage when the talent gets into effect, and even with heroism, the DPS cant pull off me... while Endless Winter... free interrupts which arent on the GCD... that really could improve my performance a lot. Hmm.