Well, take George Best or Ryan Giggs for example. Both great players but hampered internationally by the fact they play for countries who just don't produce players of a similar level so it's natural that they won't shine at that level of the game.
While I think that the "Xavi and Iniesta" argument is bollocks when people use it against Messi, it's true that he's better with them than without them. It's only natural. At club level you can go out and buy superstars from all over the globe to bolster your squad but at international level you're stuck with what you've got. Which is also why I think a tournament like the Champions League is harder to win than the World Cup is.
I'd say that's a very important factor in why "superstars" don't always look as good at that level of the game.
That doesn't make any sense: surely the scenario where you're more limited is the harder one?
Re the much vaunted "minnows" argument, then they need to at least achieve something within their range.
Just an example;
N. Ireland managed to qualify for the 1958 World Cup from a group containing Portugal and Italy; can anyone here name more than 2-3 players from that squad? (Gregg, Blanchflower); they even reached the QFs.
Then in came George Best, often proclaimed one of the greatest ever, and yet during his entire international career (1964-1977) he couldn't inspire N. Ireland to qualify for another WC (or EC for that matter), but the first opportunity after he retires from them, they manage to qualify again, in 1982 and reach the 2nd round of the tournament.
Am I crazy to expect a player that many consider one of the greatest ever to do a little better when it's been proven possible right before and after him?
The same applies to everyone. Messi doesn't have to replicate what Maradona did, but at least have one great/amazing WC even if he doesn't win it, seems reasonable enough to me.