He would be mad for choosing Real Madrid in terms of long term development.
Illarmendi, Canales - barely got a look in, development stagnated ... then you have someone like Alvaro Morata who did well when called up, a good striker to have in the squad yet was still shipped off to Juventus.
They then replace him with Javier Hernandez, who has struggled, and what has been the clubs response? They actually stated they made a mistake in signing him. Who the fuck says that publically?! No respect towards the player, basically thrown him to the vultures.
Alonso, Ozil, Di Maria - did so much for the club and yet were treated like utter shite and discarded.