OP here.
Thanks for all the ideas everyone! Now I want to go, too!!

Anyway, here's their latest:
Cosmo looks awesome but too pricey. It's way over twice as much as the others for their dates.
The Luxor is in the running, but it's only a 3* star now.

It apparently needs work and updating.
Surprisingly, the
Tropicana is now ALL new, gets great reviews, and is a 4*! (Who'd have thunk it? LOL

) BUT, their balconies have now been renovated into big windows, which DO open however.
In first place LOL is the
MGM Signature. Although my Aunt is worried about the long walk to the MGMs pool area. Although each tower has it's own, they'll want to use the Lazy River at the MGM.
Anyway, thanks all and please keep the ideas coming! (If there are anymore?! LOL)