Looking for advice on deciding between these two hotels. My wife and I are heading to Vegas in mid-August. I had originally booked using a special at the Aria, but then booked another special at the Cosmopolitan yesterday (free Wednesday special). I'm at basically equivalent price for either--within $25, but a much better room/view (terrace studio fountain view vs. just a regular Aria room). For reference, we stayed at Aria in March and had a great time, and really loved it there. Our goals for this trip are 1) a good spa experience, and 2) good food/eating/drinking. We aren't big on pools or a nightclubs (though the atmosphere may be fun to experience for 20 minutes or so). We are arriving at about 9 am on Wednesday and taking a redeye out of town late Friday night (technically 12:45 am Saturday), so we'll need to store our luggage with the concierge on both ends of the trip. Here's a rundown of the advantages of each property for our tastes: Aria -Familiarity -Spa (We really liked it last time; I think it's a little bigger and may have more stuff to do than the Cosmo's spa; I'd love to hang out on the balcony overlooking the pool all day long) -Starbucks (They've just opened up one inside Aria and Crystals--and my wife really likes to go there) -Jean Phillipe (I really liked that place last time) -Slightly Cheaper ($25) when factoring in the $50 "Resort Credit", though it may get used up in trying the $20 trick -MGM - I've stayed at MGM properties almost every trip to Vegas and am playing a lot of MyVegas recently. -Zarkana- I'm planning to use some of MyVegas rewards points on a Zarkana ticket Friday night just before we leave. Cosmo -Room quality (HUGE plus--with Aria I'll have to try the $20 trick (or pay extra) to get any sort of upgrade) -Something new (I do like to try new places) -It's the "in" place--though, we aren't necessarily the "in" crowd For whatever reason, I'm about 50/50 right now in deciding where we stay--we really liked the Aria last time. Any advice/suggestions would be appreciated. Specifically, I think the following may help: -Are we underrating the Cosmopolitan spa? If anyone has been to both, I'd love to hear the differences. -Restaurants: is there a restaurant at either place that we should absolutely check out?