Indi bro, I liked Brazil vs Croatia Italy vs Czech Spain vs Ukraine among your picks. Another thrilling game, I suppose will be Portugal vs Mexico, with Portugal having history of Eusebio in 66, runners up in Euro 04 and Mexico being an old favourites from the Concacaf. Can't forget a skilful Mexican player called Hernandez in the 90s. Among the games you suggested, I will support (and bet for) Croatia, Czech and Ukraine, respectively. You might be taunted or surprised about this but internally you will be pleased with prospects of winning several bets against me :D I usually pick a seemingly weaker team against the favourites, except for Argentina. However the teams I pick do have a potential to beat their heavy weight opponents :D