My mom, sister and I are going to Vegas in a couple of weeks and I there are too many choices of hotels! I've stayed in many and for this time I guess I'm deciding between value and upscale. I think I'm mostly between Aria and MGM. Has anyone stayed at MGM? We will take cabs for dinner/shoe whatever. But we do want to do spa in hotel we stay at. Aria is probably $150 more total for 2 nights (split among my mom and I).

I'm open to recommendations!