Originally Posted by
Absurdity
Superbolide is entirely fine the way it is. Having your HP set to 1 is in exchange for a lower cooldown than Hallowed Ground and you don't need to be full HP once Bolide runs out, you just need enough HP to not immediately get flattened by incoming damage, if your healer/s can't manage to do that within 10 seconds, during which you take no damage, then you need a new healer.
As for which of the two is superior, that depends entirely on the fight. There are fights where the lower cooldown of Superbolide makes all the difference.