Honestly I think I'm more excited for by LifeProof case than the phone I'll be putting in it (hooray waterproof phone!). But still, probably a 7 or 8 for the 4S. I'll be more excited when I have the thing in my hands and can actually use it. For now, while it's certainly something I'll enjoy having, it's not real yet.
Tomorrow morning, waiting for the package to arrive, I'll probably be at 11.