I'm going to San Diego next year with someone who is a complete stranger to the southwest and amusement/theme parks in general, and since I've only been to DL on this list I have no idea, but what park would be ideal for a one-day visit for someone who hasn't been to any of them? I don't mind making the haul up Amtrak one morning to Anaheim or LA to do DL or Uni respectively, and SD has a couple nice parks in it's own backyard.
This would be in the middle of summer, by the by. I guess what I'm looking for is a combination of a nice park but also one where you can hit up the majority of the important rides in just a day. Does Sea World even have rides? If it doesn't, is it worth doing if you're also going to go to the SD Zoo in the same trip?