I know most people love "new" and "bigger" ships, but if you're trying X for the first time, I strongly suggest you try the M Class. Like Bob, Infinity is my fav, Connie second (mostly for the artwork and Perry Grant), then Summit.
When you have to fit that many people on a new ship with a tighter building budget, you're going to see some things lost along the way like bigger balconies.
I have the big CC booked on Summit, does 6044 sound right Bob? Anyway, the giant CC in between the suites on the Aft Penthouse deck. Might cancel it though...too many irons in the fire.
M Class will always be "home" for me on Celebrity, if I ever sail her ships again. When's your next sailing Bob? Sticking to Solstice?