As previously mentioned, he performed two original songs and played instruments, whereas Jej did a Drake song with a bunch of technically proficient runs.
It was impressive from a singer’s standpoint, but I don’t think there’s much more to that performance than a guy who has the voice to do something better down the road.
Both Alejandro and Jej did two very technical performances, but in my opinion, there’s far more to be impressed with in regards to Alejandro.