Lets discuss and give some reasons to back up your opinions and statements.
Whats your favorite album? Why? Least Favorite Album? Why?
Well I guess my favorite album would be Painkiller for sure. It was my introduction to metal. The entire album is just.... metal... the entire time. Which is sort of strange because I love the ballads just as much as the mid paced songs and speed metal oriented songs. Painkiller is just 100% metal all the through. To me its there peak as musicians, though I think Nostradamus is there "Masterpiece". Both have something different to offer. But Painkiller is just my favorite hands done.
As for my least favorite? I imagine it'd be something by the Ripper era. I haven't heard Demolition yet but I haven't heard exactly thrilling reviews of it. Jugulator does have some great songs on it, lyrics aside. Call me a fanboy I suppose because I generally do like everything Priest does. Blame that on me liking almost every style of music ever created though.
But since I gotta pick, either Turbo or something from the Ripper era. I like them, just not as much as say Screaming for Vengeance, Painkiller, or Nostradamus.