I did that last year. I went to WDW with my parents but had to work most of the time (I work remote) in September. And then I went to DL/SoCal on a solo trip for an actual vacation in October. And then I was back in WDW in January. I did the reverse when I graduated college. Took a long vacation and started in SoCal, then went directly to WDW.
Sometimes, you're like "What is this?" after being on the opposite coast. I do that when entering DL (drives me up a wall) and then in Tomorrowland. And also with the castle, lol. It's so short.

And then in WDW when I go on Pirates.
Actually last time in WDW, most of the time I was in MK, I was like "this isn't DL and I don't like it" and I spent most of my time in the other parks. Especially because of the food; DL's food is SOOO much better than MK's (but don't go into Tomorrowland for food either, lol, go literally anyplace else). And then in DCA, I was like "this isn't DHS and I don't like it."

DCA's entry and DHS's entry are very similar, but DHS has an edge with the approach to the Chinese theater, and then the approach to ToT. Plus I dislike the smaller fair-type attractions at DCA. Another cheap remnant of the Eisner era. I spend time at Avengers Campus, at Cars Land, and then I'm like...yeah I'm done, time to go back to the other park.

QS food is better at DCA than DHS, but not better than Epcot and AK. I like the TS places at DHS better than DCA. I go to the resorts, DL, and DTD for TS restaurants over DCA.
Funny how it was opposite at WDW, like DL spoiled me for MK, and then the other parks at WDW spoiled me for DCA. Oh, and Indiana Jones...I was on that at least once a day, and then came back to WDW to ride Dinosaur and was like "what is this?"
The lack of Joffrey's bothers me at DL too. I'm like, y'all are missing out.
Oh, and attraction photos are free at DL, so make sure you grab those.
Side note: I went to Knott's Berry Farm while I was out there, which is twenty minutes away. I was super impressed. Not sure what your plans are, but I highly recommend that park too.