Brazil's midfield is arguably best in this WC -
Casemiro
Renato Augusto
Coutinho
Paulinho
Fernandinho
Fred
Willian
Apart from one, rest were active till late May for MU, MCity, Real, Barca & Chelsea - each and everyone has played more CL game than probably entire Mexican team has combined.
Their CB defense pair is Silva & Marquinhos/Luis/Miranda - PSG/PSG/Athletico/Inter and they start every game.
For many, many years, probably since Gilmar, they have a GK, who is chased by Real, Barca, PSG, Liverpool, MU - the guy is good enough to keep Ederson on bench, for whom Pep paid $52mn!!!! And, had that forward kid Jesus could sort his radar, by now could have been a contender for Golden Boot.
This is a fantastic, fantastic Brazilian side, but soccer game isn't won on papers. Mex are also great Latin side, they can compete in ball skills, their defense was in shambles against Swedish high ball, but against Brazil they can compete on grass.
It all depends on who keeps cool and takes the chance - even Germany failed to do so yesterday, while another day, they might have been 4-0 winners. On individual playing merit, apart from France, and may be Belgium - any other existing team don't even stand in same frame, might not even Spain.