I like the Aria.  It's clean, its nice, and it is well ventilated.  Moreover, it also has a lot of different lounge/bar inside.  I stayed in the Aria SkySuites on the 33rd floor and man was it a view.  Moreover, it was only about $480 for three nights.  Checking in at 2:30a wasn't a problem and neither was getting a late checkout.  I didn't get to check out many of the restaurants or food there however there is a lot to choose from.  Also it is very close to a shopping mall (across the bridge) and slightly toward the back of the strip.