Honest take
Club Olympus Fitness Hyatt Regency has pool access — Gold's Gym Deira doesn't. They sit in different tiers — Club Olympus Fitness Hyatt Regency is premium, Gold's Gym Deira is mid — so they suit different budgets.
Pick Club Olympus Fitness Hyatt Regency if cardio-led commercial gym floor.
Pick Gold's Gym Deira if bodybuilding-leaning equipment range.
Affiliate disclosure: The "Visit" links above are affiliate links where partnerships exist. Pricing and listings are based on real research, not commission rate.