Before last night's 1-1 draw, Garde was asked to compare the two.
He told L'Equipe: "It is close. Perhaps Di Maria because I think Sanchez is more comfortable on the left. I prefer Di Maria on the right where he is not locked in.
"He has a wider range, he has the ability to do anything, attack the centre back and shoot, causing problems...
"Sanchez is not the most skilful in finishing, but what attitude! He has only one desire, to win. I show him as an example to young players."