I don’t have a dog in this fight, but Aguero’s always had a tremendous supporting cast at City, while Rooney had to play with the likes of Ashley Young, Nani, Tony Valencia, Anderson, etc. for years. Aguero’s also been the undisputed #1 goal scorer since he arrived, even with Tevez, Dzeko, and Balotelli in the side. Rooney took a backseat to Ronaldo and Van Persie for sure, and arguably even Berbatov. I think that’s a testament to Rooney’s flexibility as a player.