Just got back from Mardi Gras and while we haven't sailed Oasis we have sailed Anthem of the Seas and I thought that Mardi Gras was good competition for Anthem. Anthem had the bumper cars/roller skating, Mardi Gras Bolt and the ropes course. Anthem the Solarium, Mardi Gras Serenity (with a salad bar instead of a bistro). Anthem the Dog House, Mardi Gras Big Chicken and Street Eats and Guys and Blue Iguana. Anthem 270, Mardi Gras Center Stage. The only tip is go with the flow and have a great time- Carnival and Royal aren't as far apart in the product they offer as many think. Here's a link to my review. https://boards.cruisecritic.com/topic/3005559-mardi-gras-420-to-427/#comment-67313447