Yours truly, writing for Typedia:
After all of these decisions have been made – these functional, stylistic, and production-related influences accounted for – what remains in the mind of the type designer? Why does he or she twist the brush, or pen, or mouse just so? What is left to inspire a unique design?
Answers from David Jonathan Ross, Jackson Cavanaugh, Doyald Young, Jean François Porchez, Paul Shaw, Stephen Coles, and Matthew Carter. What a list.