Don't have time at the moment to write up a full strat-thingy, but I did want to alert others to something that worked very well for my guild last night.
Most strats for the Blood Council suggest using a caster tank on Prince Keleseth. We tried this out with our warlock for many attempts, using three healers (one assigned to each tank), with me as the mobile resto druid chasing our noble warlock all over the room as he tanked Keleseth and attempted to round up the shadow orbs. Most of our wipes were from him dieing: it was very difficult to keep him topped off all the time even with his 29k health, and sometimes he'd just get one-shot.
It was suggested that we try having someone with a higher health pool tank the prince, and see if we can handle having 3 melee tanks.
So it was that our feral druid with 55k health in bear stepped up to the plate to tank Keleseth, and within two attempts, the Council was down. Caster tank? Didn't work for us. Bear tank instead? I chased Mr. Scythe-bear up and down and all over the room, him calling out to me when he was going up on the platform or having to go really far so I could anticipate and chase after him through a maze of fellow raiders (gotta stay spread out), fireballs, sparks, and mess. And it worked. He took some big hits, but with that health pool and his survival instincts/barkskin, he was able to stay alive.
Edit: looks like the bear-strat worked out for Virile at Rejuvo, too!