What each empire covers
- MGM Rewards: MGM Grand, Bellagio, Aria, Cosmopolitan, Luxor, Mandalay Bay
- Caesars Rewards: Caesars Palace, Horseshoe, Paris, Harrah's, Flamingo, LINQ
Earning rates
Both award points on resort spend (dining, spa, retail) and tier credits on casino play. MGM's tier structure rewards frequency of stay; Caesars historically gives away comps faster at a lower threshold.
The perks that matter
- Resort fee waiver: upper tiers at both empires remove the $50–55 fee — worth up to $300 on a five-night stay
- Free parking: both give mid-tier cardholders self-parking in most towers
- Show comps: Caesars comps flow faster; MGM's rewards convert to more dining flexibility
Our 2026 verdict
Light players: join both — they're free — and let each trip's booking choose which tier you hit. Casino-first travelers lean Caesars for early comps; spend-heavy visitors (spa, dining, suites) get more from MGM.