I think that you need to define the top five yelpers by means of which category the calls fit into. Appearance, craftsmanship, playability, call material (natural or synthetic), mouthpiece material (ivory, bone, wingbone) and time period. I can't name five , but I can comment on some of my personal favorite calls. Original TomTurpin, Innman Turpin, LF Cox, Frank Hegler, Zach Farmer, Ralph Permar, Herb Hornstra, Parker Whedon, Billy Buice, Marlin Watkins and Steve Lumma