How is KRR the worst attraction in WDW? Really? You'd rather go on the Astro Orbiter, Stitch, or Aladdin's Carpets than KRR? For me you can tell a lot about a ride by the people coming out of it. People coming off KRR are usually laughing and shrieking. People coming out of SGE are rolling their eyes.
I absolutely would rather go on any one of those than KRR.