I am one cruise short of Pearl on
DCL (my wife is 2 short, since I did take one cruise without her). We have done multiple itineraries, including Mediterranean, Norwegian Fjords, Alaska, Hawaii, Panama Canal, Canada, Bermuda as well as the normal Bahamas/Caribbean. The last 2 DCL cruises we took were the first two Wish cruises. We have mostly gone with just the two of us. Our first cruise was with our 4 kids, one boyfriend and our three living parents. We have also taken 2 DCL cruises with our 4 kids and their families (6 grandkids for the 1st and 7 for the 2nd). The first with 6 grandkids, they ranged from barely 3 months (before they changed the minimum age to 6 months) and 5 years, with one of our daughters 23 weeks pregnant. The 2nd with grandkids was two years later in 2017, now with the additional grandkid. In 2018, one of our daughters and her family with 4 kids joined us on the 1st Disney Bermuda cruise.
More recently, we have been cruising on RCL. Last November, we took 3 of our kids and their families on the RCL Wonder of the Seas. The grandkids had a great time and the oldest grandson has been trying to see how they can arrange another cruise. I don't think they used the RCL kids clubs at all (or if they did, they didn't find them to their liking). The two families don't live near each other, so the cousins spent their time together.
My wife and I have been on 10 RCL cruises, starting in 2021, and have 5 more booked. To be honest, if it were up to my wife, we would switch back to DCL, RCL does have cruises out of Baltimore, which is only about and hour drive from our home, so that makes it easier to get to the port. I do enjoy using the casino while on the cruise (I don't go to land based casinos, except a few years ago when we visited Las Vegas to get together with 2 of my brothers who are spread across the country. In fact, some of my RCL cruises have been "free" based on my play in the casino. I don't have very good records, but I'm sure that I have lost less in the casino than the cruises would have cost me. The casino status also gets me, but not my wife, free drinks in the casino while gambling. Since we recently reached the Diamond status in their equivalent to DCLs
Castaway Club, we also get 4 free drinks per day. I think I saw one of the prior comments mention that you could bring wine onboard with DCL, but not other cruise lines. RCL allows each adult 21+ to bring a bottle of wine at embarkation. DCL allows beer, but RCL does not.
I do miss the DCL All Hands on Deck cheese platter from room service. RCL does not seem to anything like that.
We do enjoy the rotational dining on DCL, vs eating at the same location every dinner on RCL.
Depending on the ship, RCL does offer more options for specialty (paid) dining and they are not adult only (having kids in the specialty dining could be a positive or negative depending on what you want).
We did have a NCL Alaska cruise booked, but that ended up being cancelled due to the covid shutdowns.
We will be trying a Princess cruise booked for next year. Originally, we had booked a transatlantic next October on what will be the next new Princess ship that was supposed to start sailing next July. The last I heard that was being delayed until late September, se we cancelled that, and used the future cruise credit to book a cruise to Canada instead.
I probably will book at least one more cruise on Disney, but It will probably have to wait until after I retire. I'm running out of vacation time to take the cruises we already have scheduled.