Benzema marked his 400th appearance for Real with a goal in the victory.
Arbeloa said: "Benzema? This is his ninth season, for me, as a teammate, it has been a pleasure to play with him, and a challenge to face him in training...
"In my opinion, he is not one of the best attackers in the world, he's one of the best footballers in the world.
"It's a pity he does not score goals this season, but he's not just a scorer, he's doing so much.
"Who doubts Benzema? They should ask the number 7 of Madrid with whom he wants to play!"