Of the three I've done, Mystery Mine was certainly the best. It has solid theming, a few good elements, and doesn't try to completely murder you. I also enjoyed Dare Devil Dive if only for the lap bars. The layout was completely forgettable though. Finally, there's SAW which I enjoyed until right after the drop and immelmann then it became a blur of headbanging with a nice airtime hill and dive loop mixed in. I'll also say that Saw's indoor section is miles better than anything else on the other two.