My kids loved every character meal we have been to, which is most of them. With the young ages of your kids, I would pick family style meals vs buffets to make it easier on yourself.
My kids are 7 and 10, we have been going yearly since 2018. Now, that they are a little older they really enjoy buffets so they can eat as much as possible of different things. DS loves Crystal Palace breakfast. Both kids have loved Whispering Canyon for years. They both love Sci-fi, but also loved Hollywood and Vine dinner recently.
Ohana, Garden Grill and Toppolino were great when they were smaller so we didn’t have to get up to the buffet.
We haven’t been to CRT with our 2 youngest. We did go with our DD20 when she was little. I wish we had while they were still little because now that DS is 10, no way am I paying adult price from him. If you ever plan on going to CRT, your kids are good ages to do it now.