There is no coaster that I would never ride again. Out of all the brutal coasters mentioned, out of the ones I've ridden, I've liked them all. I loved Steel Phantom, even though I rode it 3 years ago (I don't know if that makes a difference in roughness or not). I did get the $#!+ beat out of me on the ride, but I still loved it.
As for Mean Streak, I don't care for it, but that's because it's boring and slow, not because it's rough. Still, I usually ride it if I'm at CP.
I have no "never ride agains"
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Coasters...the best natural buzz available.