We did DL in Cali as a part of a longer road trip holiday.
Flew to Vegas, spent 4 nights there, then picked up a rental car and drove to Anaheim. Did 6 nights there with 2 days at Disney and used it as a base to then explore LA a bit further, so Hollywood sign, Universal (with Express passes to make sure we got on everything), etc, then drove to San Diego and spent 3 nights there, before flying back from there.
We did it that way to avoid LAX airport entirely.
Just found the original bill for it as we use a travel agent (Tui) to book it all. £3,970 for hotels, flights and car hire. Dread to think what it would cost now!
We stayed at the Anaheim Marriott Suites and they gave us a free upgrade to an executive suite. It's a 10 min drive from the car park or, if you don't mind the walk, it's about 2 miles. There are loads of hotels there though that are even closer walking distance.
Disney tickets were (then!) £194 each for a 2 day hopper ticket (now £174!), Universal was £132 each for one day (now around £200). We always use Attraction Tickets for our Orlando and Cali tickets.
Last time we were in Orlando we used them also to book Kennedy Space Centre while we were out there. Instant digital ticket and was significantly cheaper than buying direct.