Anyone remember Cedar Point's old "skyline" flash animation? (circa 2007)
I like Cedar Fair's website for have a good, clean layout. I also like that while they keep the same UI from park to park, each park customizes colors, pictures, etc.
I dislike Six Flags websites for having a cluttered UI (not to mention very generic variation from park to park). HOWEVER, I do prefer Six Flag's online ticket purchasing experience to Cedar Fair. Very intuitive and easy-to-use.