Please give us your region, are you only interested in Italian schools? Also, what is your price range?

As for a degree, do not go for a "game development" degree. They are too specific, you may not always want to develop games and you may not get a great job for it (highly competitive, everyone wants to do that). Get a degree in computer engineering, you can get a game job with it, but you can also go to other areas if that does not work out. I would stay away from computer science, they teach theory and the way things "should" work. Computer engineering teaches application and the way things actually work.

In the end, jobs mainly look for experience. At least in the US, most jobs just want five years of experience, degrees are rarely mentioned. But I would still go for one for the security of it.

As far as American schools go, some of the best schools for computer engineering are:
Carnegie Mellon University (very expensive)
Massachusetts Institute of Technology (MIT) (extremely expensive)
University of Illinois at Urbana/Champaign (very cheap in comparison to the above two, it is where I intend on going next year)
Stanford University (unsure of price, probably high)

A general computer science program (data structures, algorithms, theory of computing) is sufficient for programming games. You might need some personal study to pickup 3d libraries, but they're just libraries. Relatively easy compared to comp sci topics. Plus you'll (generally) get a more well rounded background (which is useful for many game elements such as story, user interaction, design...).

And while it's good to go for your dreams, it's good to realize that food and shelter trump dreams every day of the week. At least in the States, general businesses tend to frown upon the game degrees. The general CS degree allows more options to you should food and shelter trump your dreams into a hobby rather than a living.

Searching the forums, you can find tons of discussions on different universities, especially online ones (DeVry, Fullsail, etc). But I recommend you start by talking to your school and get some recommendations since they should know the local universities.

I explained my logic. Most of it comes from advice from my boss (also a personal friend) who has had many years of experience as a programming manager.