Planning a Trip, Need your help!

Just a couple questions to ask you guys.
First, I am planning a trip with a couple of my friends to go to Pennsylvania this summer to visit some parks, we have 3 days, (F,Sa,Su). I am thinking we go to Kennywood, then shoot over to Valleyfair, then over to Knoebels. Guys have any opinions about these parks??
I know for sure we're going to Valleyfair, since we get in for free, and Since it's on the way (from Ohio) we might as well hit Kennywood. But I dono about Knoebels. I think it's probably worth it, Just like going to any park is, but in my travels $$$ is always a big factor, and I AM CHEAP!!!!! Anyways, thanks in advance!

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"Welcome To Alaska"!!
ME AND YOU DT IN 2002!!! Another DT mini-marathon on a day I get Bored!!!

Knoebels has one of the most talked about haunted houses in the country. I'd stop there just for that and anything else is butter.

This would be a GREAT topic for GTTP's sister site COASTERBUZZ. And while you are there be sure to join the COASTER CLUB. There are a number of benefits for members including CP's COastermania and a special event at PKI in June...Check it out and JOIN today!