I've been lucky enough to have done both WDW and Disneyland several times each. If the opportunity arises (and it sounds like it has!) check out Disneyland. While similar, it is also very different from the MK. One of my favorite "lands" is New Orleans Square. It's here that the Pirates of Carribbean are located. There is also a great counter service restaurant where I was abel to get some Jambalaya and listen to a jazz band play while sitting outside under a canopy. As another poster mentioned, there is also a disney gallery in this area (located just above the entrance to Pirates). This is a great spot to check out in the afternoon. There is a balcony with some chairs on it that offer a great view of Thunder mountain in the distance. It's nice to sit down on one of the chairs and relax while watching the hustle and bustle of Dinseyland below you.
After New Orleans Square, my next favorite thing is Fantasyland. It is about 2-3 times larger than Fantasyland at the MK. There are Sow White and Peter Pan rides, both of which are different than the MK. It's a Small World has a beautiful exterior design, and there is also a Dumbo and Tea Cups. In addition to these rides though, there is also a Pinnochio ride, Alice in Wonderland ride, and my favorite, Mr. Toad's Wild Ride!. Actually, I think the toad is tied with the Matterhorn, another fantastic Fantasyland ride

Oh, and I forgot the Story book canal boats, and Casey Junior train ride. See how much bigger it is?

Toontown is just a short walk from It's a Small world, and in my opinion is done much better than it's counterpart at the MK. The feature attraction here (yes it has one!) is Roger Rabbit's Cartoon Spin. It's similar to other Fantasyland dark rides but it allows you to spin your car as much or little as you wish.
Fantasmic is Superior to the MGM version, although it is performed on the Rivers of America so viewing can be an issue. Get there early and get a good spot, it truely is amazing. You can also find the original Tiki Room show, and the Indiana Jones ride in Adventureland. The jungle Cruise is smaller than it's MK versions, but it has a neat Pirana trick toward the end
And all this is just Disneyland! California Adventure is just about 200 feet from the DIsneyland gates. Talk about ease of park hopping

It's also great having DtD right in between the parks.
Well, I have to get going, even though theres so much more I could say about Disneyland. One last mention though...the Uva bar at DtD...I think thats what it's called. It's an open air, circular bar right in the middle of all the action....loved it!
