Surprised and very pleased (obviously, I worked there) to see Hershey on so many lists!
In terms of quality per coaster, variety of offerings, and coasters from some of our favorite manufacturers' golden years (ex: three 2004-2012 Intamins, two eras of B&M's, classic Schwarzkopf, etc.), Hershey is right up there with Cedar Point and Kings Island, IMO.
BGT, BGW, Carowinds, SFGADV, SFMM, SFGA, SFFT, and a few others are close, but don't quite have the volume of outstanding coasters to match the top tier.