Was about to do mine before I saw your winning team. Would have picked pretty much every one (Cabrini the only exception).
The winning team would batter the other one. Brazilian Ronaldo (prime) smokes the Portuguese one. Pelé over Cruyff is also straightforward. Maradona has always been a much more dominant character than Messi so that may edge it between the two (albeit Messi is more gifted). Midfield, Xavi is the best ever. Matheus probably the most complete midfielder ever, Zidane over Platini is also straightforward. Defence is a lot closer though I’d still have Moore and Beckenbauer as the first two picks.
I'd run out of countries really, as there were only Italy, Spain, Argentina or England left of modern era winners. Neither the Italy or Spain teams of the modern era had great left backs (Maldini was pre and Jordi Alba post their teams victories), and I wouldn't say the Argentinian or England sides had great left backs unless we go with Ray Wilson, and to be fair it would be nice to have an Evertonian in there.