My problem with the revive LB is that it's only useable in 8 man boss fights, which are nonexistent until you hit level 50. Even then if you have to use the LB somebody screwed up horribly. I've rarely seen the level 3 healing LB used, either by healers or by Bards, so I'm not too fond of it existing when that level 3 LB can be used by Melee DPS or Magic DPS for a massive attack.