My wife and I love Carnival. Never had a bad cruise and the wait staff on certain cruises have been incredible. I think both cruise lines are very similiar. The rooms seem a little smaller on Royal and pricier. I'm not against sailing on Royal at all. I'm thinking about sailing on the Oasis, looks like a awesome ship. However, the Carnival Breeze that is coming out looks great too. SO many choices...part of the fun.