Adult trip. Been to LA and Paris Disneyland. Close access. Beauty and Peace. Disney Magic. 4 nights.
Deluxe option: Yacht Club. Beautiful rooms, highest ranked pool, walk to Epcot (10 minutes) and Hollywood Studios (20 min), or boat, short bus ride to Animal Kingdom and Magic Kingdom. Lots of quiet rooms. I don't recommend the monorail hotels because you've been to Disneyland in LA and Paris, and Magic Kingdom is similar to them, so I think it's more beneficial for you to be close to Epcot and Hollywood Studios. Especially Epcot, which is huge and cannot be reproduced by any other Disneyland. And if you stay there, you are close to numerous restaurants nearby as well as those inside Epcot. Boardwalk also has beautiful rooms, but it doesn't have a food court (I think it's the only Disney hotel without one). I found that inconvenient. Swan and Dolphin are very nice, but I don't find them very magical. They feel more like generic 4 star hotels: fancy, but not particularly Disney.
Moderate Option: Caribbean Beach Resort. Very beautiful and quiet, fast and convenient Skyliner access to Epcot and Hollywood Studios, about $200 cheaper than Yacht Club. Numerous quiet pools, beautiful lake. Bus ride to MK takes 20 minutes. Skyliner lines are long during park openings and closings.
Value Option: Pop Century or Art of Animation (sleeps 6, 2 bathrooms), easy Skyliner access to Epcot and Hollywood Studios, extremely magical with 3-story high statues of Disney figures. They also have Murphy (wall) beds that you pull down at night, and during the day you push it into the wall and it becomes a table, leaving extra floor space. I find that magical!
Animal Kingdom Lodge is a great option if you are into animals. However, you cannot walk to any park.
In the end, it doesn't matter which WDW hotel you stay in, they are all full of Disney magic. There's something about it that you just won't feel in other hotels, not even Disneyland hotels. It's just the immense size, the overwhelming atmosphere, the number of happy people going around, all of which produces a tremendous feeling every moment you are there.