I totally understand why some people love WDW or find it better. I just think that overall, the in-park experience is so massively superior at Disneyland that I cannot understand why, if you are park-focused, WDW would ever pull ahead. At least, how it could ever pull ahead as it is operated today.
Animal Kingdom is indeed wonderful, and is in a league of its own. The others, though, not so much.
Magic Kingdom is the most aggravating castle park in the world right now. Massive crowds, horrific maintenance, not enough capacity for the crowds there, deliberately slashing capacity due to MM+ data, the hassle of getting into/out of the park if you're not being bussed in from a resort, shorter hours, mediocre food and entertainment.
World Showcase is still a fun place to explore, but Future World is a mess and I don't see how what Disney's doing now is going to give the park what it truly needs. The Disney IP infusion is a square peg in a round hole.
Hollywood Studios was a worthless lump of a park three years ago (albeit with redeeming values like the still-wonderful Hollywood and Sunset Blvds and what is still probably the world's best theme park attractions in the original Tower of Terror), but perhaps Galaxy's Edge will change my opinion.
Upcharges are numerous and ludicrous throughout the entire property.
I will grant you that it is probably the best in the world when it comes to full service dining, but more often then not their quick service is terrible. And really, that's a theme of WDW: generally speaking, you have to spend more to get an equivalent experience you would at the rest of the parks. The humidity, the crowds, the lack of capacity for the crowds made worse by deliberate operational choices made by WDW, and FP+ can make the parks seem like an endurance test. You can almost feel Disney calculating just how much they can get away with cutting without people noticing, and just how many hoops you will tolerate being thrown through.
I love the water parks, but they're not great at adding to them, and WDW's water parks have some of the dullest slide designs of any water park I've ever been to (although Typhoon Lagoon's older slides have now become retro-quirky because they're so unlike the slides being built today).
Disney Springs is much nicer than Downtown Disney, but at the end of the day it's a fancy mall, and I don't go to theme parks to walk around fancy malls.
I don't love everything Disneyland does, and it will be able to build, say, a Kilimanjaro Safaris. But I find almost every attraction and park that is DIRECTLY COMPARABLE is better at Disneyland, sometimes massively so. You can tell at Disneyland (and the internationals) that the main focus is still on the parks; at WDW, the parks are the reason people come but are almost operated as afterthoughts. At the end of the day, while it's fun to tour the resorts, and I'd love to do more of the non-park WDW exclusives at some point, I go to these places for the parks, and right now I find WDW what are simultaneously the most expensive and most cheap theme parks bearing Disney's name in the world.