Cruise

Bit random but has anyone here been on a Celebrity or a Royal Caribbean cruise before around the med? Just wondering if anyone had any views on which they thought were better? The Royal Caribbean seems to have more activities etc. on board, but Celebrity seems to be a bit more upmarket perhaps? We are going as a couple (I am 26 H is 33) and don’t want to be surrounded by children, I am more drawn to RC based on everything you can do on board but I don’t want to be a couple in the midst of hundreds of families! We are looking at going Late June/ early July so I would hope kids would still be at school but you never know nowadays!