Marriott. Using 88vip, you can directly upgrade to Marriott Gold Card. Marriott Gold Card can enjoy room upgrades and can be upgraded to a higher-level room; enjoy the 8-night challenge and upgrade to Platinum Card. Platinum Card has executive lounge privileges, while using 88vip is a Hilton Silver card members can enjoy 8 nights upgrade to gold card. The gold card has free breakfast (this is still Accor's direct benefit). In comparison, Marriott's activities are better.