A Hotel for Plane Spotters: the Westin at Detroit Metro Airport
If you've ever flown through Detroit-Metro Airport, then you'll know that the place is crawling with Delta Airlines jets and jumbos. It is one of their hubs after all, but the constant aviation activity at DTW means one thing for guests at the on-site Westin Hotel: awesome, interesting room views.
The hotel knows they're a plane spotters dream, with large windows facing right out to boarding gates, so the rooms feature chaise lounges placed right where you'll want to lounge all day and all night, provided you aren't just catching a nap between connections.
Although...if that is what you're doing, the Westin is so closely attached to the airport that entering Delta/Skyteam's McNamara Terminal means just clearing security (the hotel's own lane) and hopping on the Skytrain to your gate (and there are seventy-something gates, so it's a true timesaver).
Rates the Westin Detroit Metro Airport averages $199 per night, which is a lot for Detroit but normal for a Westin.