After 24 cruises we have been on every class up to Oasis, even including one that doesn't exist anymore. The decision is hard as we have liked each for their own different reasons, and in some cases, it might have to do with the Interary. If we had to pick one, it would be Oasis. Before that we liked Radiance because of all the outside viewing. Oasis class has so many option from the peace of Central Park to the party on the promenade and shows at the aquatic center. The food options are the best and we love Central Park 150 so it gets the nod if we can only go on one. We just got off the Radiance test cruise and had sailed on her the first year she was in service and all the upgrades are amazing. So they are all great in our mind and we are looking forward to going on Navigator in August.