Dutch Milan fan here. Great forum, I often come here to read about Milan.
I am very surprised about what people who likely never watch Eridivisie are writing about Ziyech & El Ghazi.
Ziyech is the one to go for. He is more mature, proven & ready than El Ghazi at this point. He is probably one of the 2-3 best player in the Eridivisie at this moment in time. Amazing vision, he's versatile, tricky player who works for the team. He is Twente's captain, carrying Twente on his back and without him they would have been relegated no doubt. They are in a very big crisis and it would be a good time to buy Ziyech. El Ghazi is also very, very talented, but for him it'd be the best if he stays at Ajax a bit more. He's not ready to come to Milan and start being a key player like some Milan fans think, he is quite inconsistent. But like I said he's also a great talent, but Ziyech is ahead of him at the moment, and as a Milan fan I know what the team needs and Ziyech is a better fit.