We did the 3-Day Hopper pass for the parks. We checked into the prices at the gate, and they seem to be higher than what we purchased. If you get a chance, go to your local Disney store and they carry tickets.
We loved Disneyland - wouldn't anybody? It makes you want to be a kid all over again. Our 7-year-old daughter giggled, smiled, and was delighted to have her mommy and daddy for the 3 days.
We didn't use the fast pass at all, because the return time seemed a lot later, so we stuck it out on the rides for the wait time. The most we waited was 60 minutes, but it went by fast. If you get there first thing in the morning, go on the big rides first. There is less wait time, and also, when the parades or fireworks are on, the ride lines are less too.
We did take a backpack to carry snacks and water bottles. The cost of water bottles and soft drinks is $2.50 or more, and that is kind of expensive for a family of three or more. So it was helpful packing the backpack for the hot days in the sun.
We enjoyed the Disneyland park, but did spend a day at California Adventure. Thinking back now, I have seen and done it, and I don't know if I would return to Cal Adv. Not a lot of rides for young ones that make the height requirement for safety, but they do have a water section for the kids.
I still think that Disneyland is the happiest place on earth and will always be a family place to my family. It was great, fun experience for us, and we had a blast on the rides.