Throughout the years WFD has seen many of its champs using a variety of grip in which they used to win with. It seems that the top ten in the hands ranking have no similar technique, but all use differents grips that they thought were more suitable for them. Mangini was known for keeping incredibly low stick hieghts at a controlled level, Matt Smith is famous for his use thumb control in traditional grip, Jotans 'Shakin Vibration' technique, Rabb and Moujallis use of fingers and Art Verdis Gladstone technique and Tom Grossets 'balls to the wall' style. These are just some examples along with many others.
Give your input on who has the most interesting grip.
Matt Smith 'Crab Claw' Technique
http://www.youtube.com/watch?v=gFGS1uBthO4
Manginis 'low key' technique'
http://www.youtube.com/watch?v=e7TzWrKso4I
Tom Grosset showing a combination of wrist and finger motion
http://www.youtube.com/watch?v=egID8WnPvaI