I haven't owned either of these, but I've shot them both. I, too, have less than large hands. Either gun will feel good in your hands I suspect, they do in mine.
I don't think you can go wrong with either one, what is it for? If you can legally carry a gun as I can here in Virginia I think I would go for the USP compact. If I still lived in California or one of "those" states then I would go for the P229, which will require a bit more care but is also a really good gun. I think your question here is a ford/chevy type of thing. If you stated that you couldn't decide whether to get a Charles Daly or a Sig P229 I would be able to help you a bit more, but these are both good guns, really good guns, so I don't think you can miss here either way. In your shoes though, I would take the USP compact .40 as it offers more corrosion protection and lighter weight and more durability in my opinion. Plus, you can strap a light on it if you want to. Good luck, let us know.
Jake Salyards