For me, a ride has to have all the right things for it to really blow me away. I like all G forces, really. I really get a kick out of positive G's, but who doesn't love some killer airtime? One thing that
really turns me off on a coaster is an excess amount of lateral forces. If I want to get squished into the side of the car for extended periods of time, I'll hop on a spinning flat ride. (And actually, I
don't want to get squished, so I don't ride those nothing-but-spin flat rides too often.)
I love high speeds on coasters. That's probably the reason the omission of the inverted camelback on Phantom's Revenge doesn't bother me one bit; I love that long, flat section between the first two drops. Also, steep hills are fantastic. Millennium Force really tears up in that category.
There are a few major factors that come into play on coasters that a lot of us don't even notice. Location, order of elements, layout, surprises, etc. All of those really give coasters their own
personality, and I think that's the best quality on any coaster.
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Matt Lynch
Co-Webmaster, Kennywood Boulevard
http://kennywood.coasterbuzz.com