The reason people always talk about Argentina is because this the first time they made it through semi finals since 1990, and last time to final since 1986.
And the reason people always talk about Brazil is because they're the host, not often hosted in South American. And because they did well in Qualification, like Argentina.
If anything, Spain is the one who people always talk about. They dominated football for 6 years.
last but not least, runi nub