Diego Maradona — the single most devastating player I've ever seen.
Luis Ronaldo — the second most devastating player that I've ever seen.
Pelé — a GOAT with the most impressive career; arguably the most complete attacking player that this game has ever seen. I also haven't seen a single bad game of his.
Xavi — the most dominant midfielder and certainly the best midfield playmaker that I've seen.
Andres Iniesta — probably the most talent side-kick in the whole history of football that elevates Xavi's performance as well as everyone else's on the team and is also due to a match-winning performance if this team is getting ready for a hypothetical final.
Frank Rijkaard — the most complete midfielder that I've seen, the greatest defensive midfielder in history that had performed at the world-class level as both center back and box-to-box.
Paolo Maldini — without any argument the most complete left back of all-time and for many even the best defensive player in history.
Franco Baresi — for me, the best defender* in history of the game, I've never seen anyone more dominant at the back.
Franz Beckenbauer — the reason for the previous asterisk, as he is, without a doubt, the greatest non-attacking player to ever step on the pitch. Baresi is better at defending though.
Cafu — a one-man wing and a shoe-in for any of my all-time XIs.
Peter Schmeichel — this place is not set in stone, but I feel that the difference between the likes of Buffon, Schmeichel, Yashin, Kahn and a few of select others is absolutely marginal, so went with my heart.
Notable mentions:
Lionel Messi — as good as any of the attackers, but I went with my heart. Maradona & Luis Ronaldo are 2 footballers that I'd pick first for a single match-off with some aliens and Pelé's career at all levels is still slightly more impressive than Messi's for me. I also somehow feel that he'll fit better with Maradona & Ronaldo than Lionel, although any combination of the four of them would be unplayable.
Lothar Matthäus — one of the top-3 central midfielders of all-time alongside Xavi & Rijkaard for me, but those two fit the team better.
Luìs Figo/Pavel Nedvěd — considered both of them in Iniesta's place as a support players for that front 3, but went with Andreas.
van Basten/Müller — when choosing a number 9, those 2 have to be in consideration. Always.