IF you go to SFDK, the closest airport is Oakland, and it's still not super close. It takes about 45 minutes to drive to the park, and just like Arrow Dynamics Fan said,
SFDK is different from the average Six Flags park, with it's animal shows, and exhibits. As for rides, They're good, but not much really stands out, besides V2.5 and S:UF. As for hotel info, there's a lot of chain hotels close by, like Marriot, and Best Western.