California Theme Parks :]?

Okays, so I'm going to California with my family this summer. And we're going to Knott's, Magic Mountain, Disneyland, and California Adventure Park. Any suggestions on which rides we should go on and which we should go on first? Summertime is really busy I'm guessing. We basically all love the more thrill-seeking rides. But hey, I love kiddie rides, too. x] I also have a sister who will be 7, so I guess kiddie rides, too. Since my cousin and I have to go with her, haha. I've already looked on all sites for the rides, but which rides will have the longest lines? Which should we run to first before lines get long? We plan on getting to the parks before opening times.