If you can get into a top 5 (10?) school, I'd absolutely go. It's utterly unfair (and probably not backed by actual facts), but the cachet from a top school is real.

University is also a great time to have fun, develop relationships, and become a proto-adult. I'm not sure that 4 years of "head start" (by skipping college) is a good decision for the average 18-year old to make. By all means, if you have a great idea or a compelling thing that you're running "towards", that's fine, give it a go. But the default "go to a good school and get a degree in engineering, math, or comp-sci" is pretty sound advice for most. I had no idea (more precisely: the wrong idea) what I wanted to do with my life when I was 17. College gave me time to figure more of that out and I don't feel like I lost out, in fact quite the opposite.