I liked the prices better at Disneyland!

We got a 5 day pass, and I can't remember exactly how much it was, but it wasn't bad at all compared to WDW.
You can also get an inexpensive hotel within walking distance of the park (we stayed at the Candy Cane Inn which also had a breakfast in the mornings).
At the parks there are some differences. One thing we loved was that we got to try out a Segway (for free!). We also like the restaurant with Ariel (I think it was called Ariel's Grotto or something like that). The California park has the MOST WONDERFUL SHOW of any of the parks--the Aladin Show. It is really something! The theater is really nice!
Toon Town is cuter at Disneyland.
There is a Snow White show at Disneyland that is very nice.
NOW.....at WDW the resorts are nicer (for the most part, the new California resort at DL is nice and it is cool how you can just walk right into the park from your hotel).
WDW has more parks (like MGM, AK and Epcot), so there is much more to do and see.
WDW has more out of park things (like DisneyQuest, Hoop Dee Doo Review, Cirque, Boardwalk, boating, waterparks, mini golf).
WDW has more restaurants with many more choices of character meals.
WDW has various evening shows (at DL there is the Fantasmic show at DL and the Electric Parade at the California Park).
You know, both places are nice, but if you could only go to one, WDW has much more to offer. If you can visit them both, then go! It is worth it!
DJ