as for spain, they're pretty toothless these days. i mean, they've always relied on their ability to pass the ball into the net and were pretty limp in 2012 (until the final) and they're only getting older. not a good suit for swamp conditions.
brazil are favourites, but my dark horse is belgium. they're looking a lot like germany did in 2010, who themselves could've been favourites if they didn't have more injuries than the city of dresden circa 1945.
Eh, there were 3 spanish team in the european cup finals and all those teams had lots of spanish players. They are not too old either, besides Xavi and Villa only the goalkeepers are 30 years or older, most players are between 25 and 28 which is perfect + some huge talents with already quite some experience below that age. Regarding climate, they can probably adapt at least as good as any other european team, they're used to the heat if not the humidity. They also have a great coach and have huge tactical experience. Only downsides I see are that they might have problems to motivate themselves, as many players have won almost everything already. Also, there have been concepts developed against with tiki taka, so they shouldn't overly rely on that.
Regarding belgium, they have a crazy amount of talent but from a historical point of view I'm sceptical that they can win it all. They might be a tad too young, especially in the offense. I also think that Wilmots is not excatly a tactical genius.
