Best coaster I've ever been on: Millennium Force, hands-down. It's like riding a rocket. (Second-best: the
coaster at Six Flags New England. Amazing airtime on that ride, and it's constantly ranked high on coaster enthusiast lists.)
Cedar Point is like a coaster smorgasboard (sp?). You've got old wood, new wood, inverted, suspended, stand-up, 200 feet, 300 feet, 400 feet, WTF... Something for everyone.