I'm also a frequent DL visitor. Again - depends on kids ages/interests but when my kids were younger we did 1/2 day at HS or AK tops. At HS - Toy Story, Tower of Terror, Star Tours, Disney Jr show, etc. BUT Aerosmith Rock'n Roller Coaster is fantastic. Animal Kingdom - Everest is also a favorite of ours. I like Grizzly River Run MUCH better than AK's Kali River Rapids and the safari is nice. EPCOT - we don't waste our time on Soarin' there. We like Test Track and love wandering the World Showcase. But if your kids just want rides - that might bore them. My kids loves coloring in each country, collecting stamps, trying treats. It was sort of a down day from the fast pace of the other parks - so it is great - but maybe not for just one day. I asked my kids this question and they answered Blizzard Beach - of course we haven't been in winter. Because of DL, Magic Kingdom is lowest on our list at WDW. Feel free to ask away if you want other thoughts. When I was looking at flights for each day - I was toying with getting a one day hopper and hitting 2-3 parks based on hours. Hit one early, use pre arranged fast pass at one mid day and then end night at one - that way I could focus on all the non-DL stuff. My husband didn't think ending a relaxing cruise with a crazy day was how we should end our vacation - so we fly back to Arizona Saturday...