This may be a pretty tall order, but it's worth a shot...

Is there some resource, either in print or online, that displays the same image photographed using various black and white films, and developed in different developers? What I'm after is some sort of matrix which shows how film 'X' looks when developed in 'A', "B' and 'C', compared to film 'Y', developed in the same developers? I realize there are a million variables that affect the final image, but there's got to be something significant about each film/developer combination or else why do so many people spend so much time looking for it?

Thanks