The first time I went to to
Disneyland we went during the 60th and we loved it! It was specially decorated and the special 60th fireworks every night were spectacular. I will say the second time I went it wasn't as special for me but I blame this on us going literally the day after Christmas. It was so crowded we wouldn't do much and the walkways were packed with so many people that castmembers had to literally direct traffic with signs that said "if you want to go to blah blah stay to the left" etc. It was honestly the same as when you try to leave Magic Kingdom directly after the fireworks and the park is closing. That crowded. That was when I noticed how small Disneyland is.
BUT! Disneyland is amazing and absolutely worth experiencing. Try not to compare the two but if you're like me you will occasionally. For me these are some of the things i found different for the better/different for the worse/odd/unique etc
The ride themselves are pretty much better at Disneyland. Pirates has 2 drops and a few extra scenes, Indiana Jones though the pretty much exact same ride system as Dinosaur is much better at Disneyland based on the insane themeing. Space Mountain is much smoother at Disneyland (though I do prefer MK SM because the jerkiness makes it scarier but most people i feel prefer DL). There are also the classic Dark rides that are great like Mr. Toad, Pinocchio, Snow White. The one negative I have for rides and this may be because I am used to WDW's queues is that for me, I think part of waiting in line makes for the overall ride experience. A lot of the queues at DL are outside which for me is a negative cuz there is a slight lack of theming but also it's quite sunny and hot there.
The overall feel makes me feel like I am truly in the park Walt built (which I kind of am! lol) but its a different kind of magic. Its the simpler times, takes you back kind of magic that is truly worth feeling. Especially knowing that Walt walked through this park. WDW has a different magical feeling which is the feeling that you are really transported into a magical world as you are really removed from the outside world. I do kind of love that about WDW and it wasn't great passing by a Denny's and some homeless people to get to Disneyland but it didn't bother me too much. Just felt different.
Size yes its smaller but they do a LOT with the space. Whereas WDW uses empty space to immerse you into that land, DL finds a way to pack itself full of rides. You're never too far from a ride at DL.
Fast Pass I will say I am in the minority as I prefer FP+. For me I don't like using the legendary system because I don't really like having to run to the physical machine to then wait and then go somewhere else while you wait to then go back to the same place for the ride. Too much running around for me. Though I'm not much of a planner in my normal life, I love planning for vacations so making the FP+ 60 days out is part of the fun for me. I have also yet to use Max Pass.
The hotels are tricky because it really depends on how rich you are. My fiance and I at WDW typically stay at POP since it's closer to $120-150 ish a night and for us that's right at our comfort level. At this point in our lives we couldn't justify spending 500+ on a hotel for a normal vacation just to sleep and shower there ( we are for our honeymoon this Jan but that's with money we get back from the wedding). If you have the money though staying on property at DL can absolutely be worth it. I would love to one day stay at the Disneyland Hotel!
Downtown Disney DL versus Disney Springs also depends. If you want the options of more to do you'll like WDW better but for me I don't like walking around too much just to shop around and eat so I prefer DL's Downtown.
California Adventure is also super fun and worth experiencing. Carsland is my favorite land there and I didn't even like the movies!
Sorry for the essay. TL;DR- Basically they are both amazing places to visit and specialize in different things. You will miss some things at WDW there, but you will also be blown away by things there. You will prefer some rides there, while you prefer some rides at WDW while you may also wish you could blend some rides together to create the perfect ride. You will have a great time
