Florida born and raised, now live in Georgia, so WDW would be my home park. Just spent 5 days at Disneyland last month (had been one other time, but was only for a day, so didn't get a good feel for things that time). Visiting Disneyland did not really affect the way I feel about WDW. I still love WDW, but I also really love DLR as well. DLR resort is like a throwback to a simpler time when you really could just wake up and say "where do we want to go today?". I really really liked that aspect. Our Disney trips tend to be long weekends every year or two and they are not planned out months or years in advance, so I liked knowing we could do and see most things without having to schedule our days. We enjoyed it so much that we are thinking that maybe every third or fourth trip to "Disney" will be to Land instead of World from now on, even though it is a much longer trip.
Highlights from my recent trip:
Having a Dole Whip while sitting in the Enchanted Tiki Room
Carsland - everything about it...just amazing... I am afraid that Test Track is going to seem extremely lame now that I've ridden Radiator Springs Racers
Hyperspace Mountain - I'm in agreement with others who say the DL version of Space is better, and the Star Wars overlay was awesome. Space is generally a once per trip thing for me at MK these days, I rode it 4 times at DL
Mr. Toad's Wild Ride - man do I miss this ride!
Fantasyland - so charming. MK is down to one remaining old school dark ride. DL still has all of them. I liked that. I like a thrill ride as much as the next person, but I also enjoy the charm of the original dark rides.
Autopia - this seemed so much more fun than Tomorrowland Speedway. The track seemed a lot longer with more interesting scenery.
Characters everywhere, out on sidewalks in plain view, with mostly short lines (again, a throwback to a more simple time)
Oswald - got my picture with him twice - totally fun interaction with him - my new favorite character
California Adventure - I think this is a very underrated park. I could spend several days just there and be perfectly happy. Lots of fun stuff to see and do at this park.
The compactness of things - the two parks are a football field apart, across the esplanade. Security is before you enter the esplanade, so no need to go through security every time you park hop. Park hopping was so easy.
A few things I couldn't help but compare to WDW:
The castle - I remember my first trip to DL, when we came through the tunnel and came around the circle on Main Street, looking up and thinking "that's the castle?!?" It's so much smaller! I do love Cinderella Castle. But Sleeping Beauty Castle also has its own special charm.
Splash Mountain - this is one I think is so much better at WDW. It feels longer there, the scenes are more detailed to me there, and I like our two-wide logs better than their single-file logs.
Haunted Mansion - I like MK's better. A good portion of it is exactly the same, but there are a few extra details in MK that I like (though we don't have the hatbox ghost and he's pretty cool). I also like the upgrades they have made in MK to the hitchhiking ghosts. And I am so glad that MK does not do the Nightmare Before Christmas overlay like DL. My first trip was in October, so was there during the overlay and I hated it! But I also love the Haunted Mansion and don't care for the movie, so it felt like they had totally ruined a perfect ride to me.
Small World - while different, the rides themselves I consider a draw...neither better than the other. However, the DL ride exterior is much much cooler than the MK version. We watched the fireworks back there at DL and thought the projections on the SW exterior were very cool.
Tower of Terror - I've ridden this in 3 parks (FL, Paris, California). Florida's is far and away the best. The 5th dimension scene, the random drop sequence, the queue, everything about it is just better than the rest. Still a really fun ride no matter where you go, but Florida's will always be the best in my opinion.