Vegas thing is tacky.
The Cosmopolitan and I get along VERY WELL for some reason. They give me just about everything I could ask for everytime regardless of what I have from others.
I am not sure of the reasoning except that my Player's "Identity" card is linked to my portfolio there, and perhaps I get upgrades prearranged through my specific host combined with Marriott Plat. I do not really need to ask for much. Upgrade to wrap-around suite and Wicked Spoon buffet everyday. I am not complaining!