@jleslie, Southern California (or more specifically, Anaheim) may be more temperate than Florida, but it does get cold every now and then in the winter, it does rain, and in the summer, it can be very hot (Anaheim is inland, so it doesn’t get ocean breezes the same way an amusement park by the beach would). I will say that the humidity is MUCH lower.
I know Disneyland isn’t for everyone, but like @bewailknot, I have a fondness for it, for some of the same reasons. As a California native, I’ve gone there every few years or so, as part of visits to relatives who lived in the area. Now as an adult, I live just an hour’s drive away, and still try to visit every two or three years. I too remember the days of ticket booths and ticket books. I still enjoy most of the rides, and turn into a six year old again on some of them.
But yes, the magic is strongest when you’re a certain age, and that’s probably best experienced between 4 and about 12. As an adult, the expense, the cheesiness, and at certain times, the lines, are factors in why it’s not so “magical” anymore.
I’ve been to Walt Disney World in Florida, and I actually prefer Disneyland, for the most part. Now, Epcot is fun on a certain level, and I do enjoy the international buildings. But again, as some of you mentioned, it’s all a sanitized, corporate version of the reality (which is why Disney California Adventure, where the Disneyland parking lot used to be, failed so spectacularly; it’s now being “re-imagined” as Pixarland, more or less…).
As for Universal, I’ve not been to that in Florida (or MGM), but I’ve been to Universal here in California. It’s the kind of place you go once, or maybe take an out-of-town guest that MUST see it, and that’s that. a tiny handful of rides (about 10…?), more shops/food stands than Disneyland (if you can believe it), and not much else. The best part is the tram tour, but even that is something you can do once, then check off your list.