Dephun, you're generalizing. To say Slavia doesn't have competition at home is funny at best. They're just having a good (half) year. Other years, Plzen and Sparta rules.
And a Dutch-Belgian league would be the end (even more than now) for Belgian teams, as they can't compete with the Dutch ones.
Dinamo Z unfortunately is true since Hajduk Split imploded. I'm very much a Hajduk fan