I've never been to the FS in Vegas, but I love the MO. Mostly, I love that you don't see drunken idiots stumbling around. I love that you can get to your room in less than 4 minutes from walking in the door. I thought the entry level room size was pretty generous and loved all the bells and whistles. I love the relaxing un-vegas vibe. That being said, I hate Vegas, and the MO is the only place I feel like I'm not on somebody else's bachelor party.