I’ve only been to Disney World, but I have been many times. My favorite park is Epcot. Some of my favorite “rides” are Soarin’, Living with the Land, the ride in Mexico, walking through the future house, and I had very nice meals in Japan and Norway.
Each park I have favorite rides, but Epcot is the park I typically go to if I only have one day, unless I was just there in the last year or two.
I also really like Typhoon Lagoon for a day at the water parks. I like it better than Blizzard Beach.
Downtown Disney is good too, but it often is very crowded even when the parks aren’t. One of my favorite restaurants is the Irish one, I think
It’s called Raglands? Good food, and performers doing Irish dance for a shirt spell every hour, and a live band that alternates with them. You can go in and just sit at the bar and have a drink and watch the show if you want.
Best is to go off season. Off season most rides have 10–15 minute waits, although the very popular ones can still be an hour or more. Some there is no wait, you just walk right on.
There is an app for ride wait times in real time.
January is a great month for very little waiting, any time after the new year weekend, but it can be cold. Early November usually is good too, before the weekend before Thanksgiving (meaning even the weekend before Thanksgiving is busy, because some people take off that entire week). There is also a lull after Easter breaks stop and before children start getting out of school, so that’s usually late April very early May time frame. Just keep in mind when kids are out of school Disney is busy.