Here's a run-down that I have posted before about ride differences that may help you prioritize since you have been to WDW. Jsut keep in mind that some rides that seem the same aren't really, and some that are different are very comparable to one at WDW. All are worth experiencing though, sometimes just to see the subtle differences.
Disneyland:
The Enchanted Tiki Room: longer show at DL, people seem more into it
Jungle Cruise: no temple tunnel at DL, shorter ride but other than that the same
Indiana Jones: Silimar ride to DINOSAUR at AK, better theming
Tarzan's Treehouse: pretty similar to Swiss Family Robinson Treehouse but with more Tarzan stuff
Pirates of the Caribbean: DL has two drops and more show scenes - much better than WDW version
Haunted Mansion: different exterior, ride is actually slightly shorter, has the Hatbox Ghost who is awesome but still give the edge to WDW one, but not by a lot
Splash Mountain: single-file seating at DL, shorter, water tends to overtop the boats guaranteeing you will get soaked to your shoes!
Winnie the Pooh: pretty similar, different ride vehicles that look like beehives
Big Thunder Mountain: DL has outdoor loading and new special effects in the final scene, smoother since refurb but otherwise very similar
Millennium Falcon Smugglers Run: identical as far as I know
Peter Pan's Flight: DL version is a little shorter and stops to load so it loads even slower if you can believe that, WDW is slightly more refined
Dumbo: only one spinner, basically the same
Mad T Party: no canopy at DL but otherwise the same
It's a Small World: much nicer exterior, loads outside, large gaps between water track and show scenes, some Disney characters sprinkled in
Autopia: much longer than Tomorrowland Speedway and nicer scenery
Space Mountain: a very different ride here, smaller footprint, seating is side-by-side, smoother, cool lift-hill effects - WDW Space is very similar to The Matterhorn - they use the same ride system
Buzz Lightyear Astro-Blasters: guns can be held in your hand at DL making for easier aiming
Star Tours: identical except for having only four simulators instead of six so the line can move slower
Astro Orbiter: situated on the ground at DL so the views aren't as good
California Adventure:
Soarin: identical but only two theaters, may still be running the old California version so if you like that better could be good
Grizzly River Run: longer than the comparable Kali River at AK - you will get soaked on either!
Little Mermaid: different exterior but ride is exactly the same
Toy Story Mania!: the ride is exactly the same, only two tracks instead of the expanded three at HS, queue is outdoors but covered
Radiator Springs Ravers: comparable to Test Track as it is the same ride system, much longer, more themed elements, side-by-side race but not as fast - beautiful scenery!
Mater's Junkyard Jamboree: standard whip ride that is very similar to Alien Swirling Saucers at Toy Story Land
Guardians of the Galaxy: converted form Tower of Terror, DL tower was always different in that there is no forward movement of the car, all scenes on video, random song choice, very nice pre-show
Disney Jr. Dance Party: I believe this is basically the same as the HS one