Songs with the most good quality covers?

I like it when covers are almost not recognizable so one of the best covers with complete alteration of the original was "Type "o" Negative's" "Paranoid"(Sabbath), also I love all the covers that "The Cure" have done ("Foxy Lady", "Purple Haze"(Hendrix),"The world in my eyes"(Depeche Mode) just to name a few). Of course "Paradise Lost's" "Xavier"(Dead can dance) and "Small town boy"(Communards) and last but not least the german group "Megaherz" did an exceptional cover of "Flesh for Fantasy"(Billy Idol)