I'll go to a conference in Atlanta and can choose between the following hotels:

• Marriott Marquis at Peachtree Center
• Hilton Atlanta
• Hyatt Regency
• Sheraton Atlanta
• Westin Peachtree Center

I searched the different forums on FT Miles but info there is quite ambigious. Most people seem to agree that the Westin is run down so I think I'll rule that property out. But what about the rest of them? Conference rates are really good, so I'm reluctant to move to a better area of town like Buckhead. Any help is appreciated.