I have stayed several times each at the Embassy Suites, Marriott and Renaissance in the Airport area. MY recommendations would be in the order above. The Renaissance may have the best looking building but the service from the staff varies from OK to downright snotty. I have had much better experiences at the other 2. I also have stayed at the Doubletree Club in the area one time, and will never be back. I should have know when it took 3 calls and over an hour to get their shuttle, which actually never did appear, but a Marriott driver took pity on us and picked us up after having seen us sitting there waiting on 3 of his previous trips. It was downhill from there.
If you can get a weekend rate at the ES, its a definite winner.
Cindi