A.A.
I have to say, since your kids are older, they may appreciate the California Adventure park. My kids used to LOVE Disneyland when they were younger, but the last time we went, their favorite was California Adventure. My girls' favorite rides were Tower of Terror and California Screamin'. My favorite ride is Soarin' Over California. Don't bother with the parades here. I usually get the hopper so we can go to both parks.
For Disneyland, the best rides are the classics: Haunted House (scarier at night,) Matterhorn, Space Mountain, and Pirates of the Caribbean. My new favorite ride is the Indiana Jones Adventure. I also recommend sticking around for the Parade of Dreams. It is a truly beautiful display that we all enjoyed.
By the way, I have a good friend who has worked the Haunted House and swears there are real ghosts there, much to her chagrin. A little boy and a woman in a red dress. If your family like ghost stories, I'll tell what I remember to you :)
One last favorite in Disneyland is the jazz band in New Orleans. They are great to listen and dance to. A real slice of Mardi Gras there. While your there you can pick up a bread bowl of jumbalaya that's so tasty even my 11 year old like it and she's picky.
Since it will be busy, try out the Fast Trak system. It allows you to enjoy more rides in less time. Less waiting and hassle.
I haven't stayed in the Doubletree, but I have enjoyed Peacock and Homewood Suites. Peacock is closer and cheaper, but not a nice as Homewood. I would give thumbs up for both.
Happy Thanksgiving!!!