Hi Mike!
Check out the atrium in the Bellagio as well. They decorate it to reflect the season and is just gorgeous. Very well done.
The MGM is a good location, an easy walk to many of the other hotels. If you like roller-coasters, try the Manhattan Express in New York, New York. Very exciting and if you go at sunset, it's amazing.
The Luxor is kind of cheesy but fun. If you're crew, some hotels will give a "comp" or a discount for some shows. Never hurts to ask but bring your crew ID.
I always enjoy Caesar's Palace. What a spectacle! Rio is fun, but off the Strip. Worth going though. Great seafood buffet but there's usually long lines for it. Also, Rio has a Carnivale theme so there's a chance to catch some beads. The cocktail waitresses wear the absolutely skimpiest costumes! Fortunately, they're all fit enough to do them justice!
Have a great time and let us know how your trip went. I feel obligated to warn you: you will see some of the ugliest people ever seen in public. It's plenty warm during the day about now but you might want a light sweater or jacket for the evenings.
Dea