I barely remember seeing Pele, but I vividly remember seeing the likes of Cruyff, (my all-time favorite footballer) Van Basten, Beckenbauer, Platini, Maradona, Zidane and Gerd Muller. Messi is up there with all of them.
I still put Pele at #1 though....and as much as I can't stand the guy, Maradona is probably second on my list.