Personally, if you can get into one of the very top universities that have a track record for being the places where succesful startups come from then I'd strongly recommend it.
Note that I'd love to be corrected on this point - I graduated in '88 and co-founded a startup after working in academia for 6 years and the help we got from the University we worked for was laughable (they asked if we wanted to lease a building!). However, we did meet our first angel investor through the university - he had done the same CS degree as me about 20 years earlier.