Both forwards moved to Ligue 1 this summer, with the Colombian notching four times in his first five league appearances while Cavani has struck twice for les Parisiens.
|PSG FAVOURITES FOR MONACO CLASH - RANIERI
|5/1||Edinson Cavani is 5/1 with BetVictor to open the scoring against Monaco
"I believe it's very difficult to make a difference because for me they are very similar. They have an animal aspect inside of them. Both of them are animals," Wenger told Bein Sport.
"I think Cavani is a bit more mobile, and makes more runs off the ball, and Falcao is a bit more of a box player, a bit more of a killer than Cavani.
"But both of them, I love. And honestly, not to protect one or the other, but it's very difficult to make a difference between the two."