I prefer Milan but it'll get old because Milan players are not young and some of them will soon retire. If you won everything with Milan, then go to Barcelona and then if you play well, you can get an offer back from Milan.
Try this if Milan doesn't make an offer.
When you end up in the last 2 matches, do 1 of them and the last one skip it. But save after match 1 and always skip the last one. This way the negotiations will vary.