Well, Utrecht is highest on the international ranks, followed by Leiden. It's global, not just CS, but I think that's a pretty good indication of the international reputation of a university...
Delft seems fun, but if I'd want to go work in another country, leiden or utrecht would be better. It's fun to have loads of projects, but not at the expense of international reputation and lack of females
J-Thread: I'm probably coming to the "open dagen" in Utrecht soon, if you would like to meet, PM me
(But you'll have to show me some of the studentenleven in utrecht
!)