I'm basing it on the players I most want to see. I'm probably more looking forward to watching Ribery and Ronaldo in Brazil than I am France and Portugal. (Saying that I'd probably be more interested in seeing France and Portugal even without them than I am Ukraine and Sweden - although I do wish Zlatan was going.)
It'll be so much more fun hating him in Brazil than it would've been had Zlatan gone instead. And Ronaldo's the better player.