Pogba has watched Rashford's talent every day at United, and he won the World Cup with France alongside Mbappe in 2018.
In a Q&A with Man Utd fans, Pogba said of the pair: "They're two big, big, big talents. I think they are so young and so talented.
"They achieved so much for their young age. I think they are the present and the future of football."
"It's a nice but trick question as there is no best for me," the midfielder said. "Two different players. They are two players who both bring joy to watch.
"Any people are going to have their own opinion of them, just two legends. Me, I would just say they are two legends and not one is better than the other one. Just two people that give us football players, or football lovers, joy to watch."