Gino.
This isn't about belgian players being good or not. Our NT is another debate.
This isn't a debate about Anderlecht's performances in CL last year. 0/18. Indeed they sucked.
Nor is this a debate about the Belgian League. There is no comparison between its level and the level of the major european leagues.
We are talking about one single player. Vincent Kompany. The 19 years old defender.
I don't think you can disagree on the fact that he is the best defender of the league, and one of the best belgian defenders of the moment, together with Van Buyten and Simons, I guess.
Now, at 19 years, that is a huge achievement.
I agree with you when you say that it is a good thing that he stayed in Anderlecht. Don't burn himself, get some CL experience, take the time to think.
But he can't stay here forever. He has a huge potential and the only thing he can do is eventually choosing the right club for him. If he fails, then at least he tried. If he makes it, good for him, and for belgian players. That could open doors for others. What can he lose?
Personally, I would prefer him to go in Spain. Barça would be great. But that's only my personal choice.