I'll have to agree with Nep here and say that, IMHO, the best parts of bloodlust are haste and the fact that you hit everyone attacking you. The additional healing is a nice perk, but I think it's just that: a perk. You'll still heal more (or at least the same) at the tick while fighting than your opponent, even if they're hasted, regardless of your a/b/s status.

Kastellyn the Devourer of Magic, Lord of Legends