It's another of those "comparing across eras" arguments that prove to be so divisive in CC. Personally I'm not one of these people who thinks that because the game was less developed 50 years ago it means the players were worse - it's all relative IMHO.
As for the fact that Pele's teams were better than Maradona's, that's certainly true but on the other hand to me it says something that in probably the greatest team there's ever been, Pele was still the undisputed star. He was the undisputed star of the Brazil team for pretty much his entire career too - Garrincha was considered to be just about on the same plane for a few years in the '60s but the claim that Pele wasn't even the best player on his own team at the time is quite frankly bollocks. Such a phenomenon was he that Pele was deemed a National Treasure by Brazil in 1961, before his 21st birthday, and as such there's no justification in the claim that it's only over time that people have revised his status within the game.
Anyway, Pele for me.