The Warriors had a good off-season, but likely aren't going anywhere in a loaded west. Despite his injury history, Middleton showed in the Pacers series that he can still play at a high level and would provide the Warriors with a necessary talent upgrade.
The Bucks had a really good off-season considering their limited resources, but could still use help on the wing. Despite his disappointing season last year, Wiggins would provide the Bucks with size on the wing and instantly become on of their best perimeter defenders. They also get Moody, who is a good rotation piece.