This is an interesting thing to break down since I spend a lot of time talking about Vegas Rooms (and also booking people and coordinating VIP Trips to Vegas):
In Vegas:
Hyatt/MGM: No benefit at MGM except the "new" big one, waived resort fees for MGM Gold and above at all MGM Properties in Vegas. You can match Hyatt Explorist/Globalist to MGM Gold. You can also earn your Hyatt Stay Credit and Nights. None of the MGM Vegas properties are part of Hyatt Privé (luxury program).
Hilton: Gold/Diamond benefit, which is very compelling at the luxury properties, which are Conrad, Crockfords, and Waldorf Astoria Las Vegas. Crockfords and Waldorf Astoria Las Vegas are part of Hilton Impresario (luxury program).
As of September 2022 Hilton Gold/Diamond Benefit at Crockfords and Conrad Las Vegas (I have to verify Waldorf Astoria Las Vegas)
HH Gold/Diamond $25pp ($50 daily) all day long (or at any time) at Dawg House.
Marriott: Benefits at Cosmopolitan; I had notes from 2021 for the BonVoy Titanium Benefits. I believe Gold/Platinum are somewhat similar. You can also earn BonVoy Points and Stay Credits.
Bethany just did a very nice overview and comparison between Identity, MGM, and BonVoy earnings at Cosmo. Cosmo is part of the Marriott Luxury Program Luminous.
Titanium benefits at The Cosmopolitan of Las Vegas are:
· 75% bonus points on stays
· Access to the Autograph Lounge (includes coffee, tea & water service)
· 1-tier room upgrade (subject to availability during check in)
· 1,000 points or $10 food and beverage credit
· Priority 2PM late check out (subject to availability)
· Expedited seating at Wicked Spoon Buffet (subject to availability; reservations are strongly encouraged) including a 15% discount for up to 4 people (excluding alcohol)
· Non-hotel guests with Marriott Bonvoy Titanium Elite status receive expedited seating (subject to availability; reservations are strongly encouraged) and payment only at Wicked Spoon Buffet
· 15% discount on Sahra Spa, Salon & Hammam services (excluding Day Passes & retail purchases)