I chose Carnival because I have cruised with them A LOT! I chose Glory because of the BEAUTIFUL destinations and they absolutely were breathtaking!
There were 3 adult females in my party. We flew into Miami the night before and stayed at La Quinta Airport East because of free shuttles (airport & cruise port, breakfast, and wifi). I was a bit leary about their security and you can't really walk to restaurants from there. I wrote a review on them as well if you want to look it up.
Check in to the Glory was a breeze. We had an oceanview on the first floor, midship. For 3, it was plenty of space. We felt no motion but our neighbors were very noisy until I called security. Although cruises are what you make of them, I noticed that this ship had MUCH LESS fun and activity than others I've been on. Housekeeping in the cabin was also subpar at best. In general, they no longer put chocolates on pillows and if you want a bathrobe, ask for it. Cabins are made up once as opposed to twice before and room service is no longer free.