That's a good question. For me, it would be to go to a school that has a reputable curriculum, that is known for producing graduates who are going to the companies that are making the games.
First of all, they need to figure out what it is they want to do. Do they want to make games? Do they want to be an artist? Do they want to be a producer? Do they want to be a computer programmer? The answer to that question would cause considerable divergence in the paths such people would travel. We have school programs in Canada that graduate artists that are considerably different from the university programs that graduate computer engineers and software developers. You would need to really understand what it is you wanted to do in the video game industry. One of our strengths is that we are at a convergence point of so many different skill sets that there are many different things you can do.
So figure out what it is you want to do and then find the best school that graduates students in that area.