Here is what I wrote on another thread:
We just did our first WDW trip in Nov as DLR vets. Overall, we thought the totality of all parks combined on each coast were roughly equal, but we gave the edge in the parks themselves to DLR, because there are more attractions per park and the detail seems better. This was particularly true of how DCA stacked up against the non-MK parks at WDW.
Where WDW shines, is sheer size, number of uniquely themed resorts, outstanding table service restaurants, and lack of the outside world. Though oddly enough I was surprised everything was so flat and you can see into the MK from outside -- I missed how carefully DL uses the berm. MK doesn't feel as secluded in Florida, even though it is completely segregated from the non-Disney world.
Our entire party felt WDW was less about the parks and more about the overall vacation experience on-site than DLR.
We stayed at and the Grand Floridian!!! Narcoossees was awesome and we timed it our first night to see Electric Water Pageant while waiting for our table and then fireworks between dinner and dessert. Magical with great food and dessert. We hopped on boat to MK at the adjacent boat dock and did Extra Magic Hour. Between 11-1 am we got a ton done. In fact, we stayed on CA time the entire and skipped RD in favor of closing down the parks. We also did
MVMCP 3 nights which was awesome and let us walk on just about everything.
MK was our favorite park by a landslide. Make sure to spend enough time here. Here is our comparison of rides to DLR:
Completely different or different enough to warrant priority: 7DMT, Pooh, Peter Pan, Splash, BRMRR, Haunted, Philharmagic and Festival of Fantasy Parade. Both CRT and dinner at BOG were worth it!
For nostalgia: Country Bears,people Mover, Tom Sawyer Island (DS loved the fort), and Main St Electrical Parade.
Exactly the same or lesser: Space Mountain (awful compared to ours but we still rode a bunch), Buzz, Small World, Little Mermaid (ride exactly the same but que is better!), Pirates, Jungle Cruise, Dumbo, Raceway, Teacups, riverboat, Stitch (uniquely awful).
AK was surprisingly our second favorite park. We all grew up with the San Diego Zoo, so while the animal exhibits and safari are very well done, we are a tough audience. However, Festival of the Lion King, Flights of Wonder, overall theming (especially in Asia!), and Everest were spectacular. We rode EE five times and wish it and 7DMT would come to CA!). Flame Tree BBQ was a great CS restaurant. I swear I would visit one at home, if we had it.
Epcot was a fairly distant 3rd place, in our opinion. It just feels outdated, especially FutureWorld (very similar to the way that TL feels at DLR). In all fairness, we got rained on all day, but I don't think our opinion would change that much.
We knew to ride Test Track right away, and sure enough, soon afterwards it closed for the day. It was really fun but is the same ride vehicle as RS Racers and I prefer RSR. We did both Green and then Orange Mission Space which was fun but not spectacular. We also did Crush (same as DCA), Nemo (cute not spectacular), and Spaceship Earth (ok).
We went to WS and loved dinner at LeCellier. When we came out it was pouring and we gave up but returned later in the week. I can see why regulars love WS with its heavily themed restaurants and shops but we found attractions seriously lacking.
HS: Other than the best Red Velvet cupcake I ever had in my life from Starring Roles, we were all very underwhelmed at this park and after only a few hours.
Tower of Terror does have a cool difference from CA attraction, where elevator car actually moves along a track before drop sequence, but other than that it felt the same to me. RnR Roller Coaster was fun, but we all agreed Cal Screaming is better. Star Tours is exactly the same and the Great Movie Ride was horrible. The park really reminded me of DCA before the makeover with not nearly enough attractions or things to do. Not enough life to it. Unless you really want to see shows, I might consider skipping it and concentrating on other three. We used the other half of this day to to WS at Epcot.
These were just our opinions. YMMV. Hope that helps in some way. We did really enjoy ourselves, particularly the GF, MK and restaurants. We all agree we want to go back but don't know how soon (or if ever) that will be. We do have a two trips planned to DLR.