The Marriott megabrand now has more than 1.3 million rooms worldwide, following the company’s 2016 acquisition of premium hotel chain Starwood. The Marriott umbrella encompasses 30 brands and more than 7,000 hotels, from swanky Ritz-Carlton to wallet-friendly Four Points by Sheraton. Its series of cobranded credit cards offer varying levels of perks and benefits for cardholders.