Lower Joyride is a blast, because of the holly shit factor. I've seen that DH roller coaster do more than it's share of damage. Personally, I think I'm batting about .75 on it, with the .25 failure rate being minor step outs.
***Disclaimer: this post is in no way, shape, or form intended to insult anybody, anything, any animal, any lifeform, or non lifeform, or otherwise, of any kind.