I know that's not what you asked, footey, but I'd be happy with either one of them, and so should you. Both are great players.
This whole Griffin/Hayward debate and the inevitably accompanying Griffin injury non-story would hold a lot more water if we could all just admit that we have absolutely no freakin' clue what we're talking about. Nobody here is Blake's doctor, his therapist, or owner of a magic crystal ball. This is a prime example of group-think, imo, where one guy just repeats the nonsense he heard from another guy until it becomes canon.
I trust the Celtics' FO to make the right decision. If we go for Hayward, great, if we sign Griffin, awesome.
So, to answer the OP's question, I guess I want us to go for the player we have the better chance of signing, whoever that is.