Figo, who played for both clubs, said that he could not give a definitive answer on who he prefers, and jokingly claimed that he was the planet's finest player.
The Portuguese told A Bola: "The best in the world is me. That way I don't compromise.
"You cannot choose between the two best players in the world. It's very difficult, because if you choose one over the other then it suggests the other is not good, which isn't true.
"That's why I prefer not to choose, because they're both very good."
The nominations for the 2014 Ballon d'Or, which will be awarded in January next year, are announced later this month.