1) a bunch of players from Barcelona, Real Madrid, and Bayern Munich, and a few stars here and there
2) Spain, Germany, Argentina, and Brazil, in that order imo. Howevof, the stars in Barcelona are out of shape and they were the ones who had the biggest contribution to the successes in 2008-2012. Germany
should be the favourites but they are playing in South America which is historically tough for European players (the impact is not so big on South American players who typically play in Europe anyway for a club but often play in South America for their NT). Argentina has Messi Higuain etc but Messi is again out of shape although he will be extra motivated so who knows? I would rate Brazil's squad the relatively weakest of the four but they are playing in home, won the Confederation's Cup, and they are Brazil, the most successful team in history.
I like Uruguay's chances as a surprise team, maybe repeating the heartbreak of 1950 (beating Brazil in the de facto final when a draw would have sufficed for the home side in front of 200000 crazy fans), although I think the squads have changed a bit since then
... and I can prove it with my usual, flawless logic.
George Carlin