For 1771 it would have to be the shooter / grabber. The coolest part is the way the whole team got involved. After some initial doubt about the feasibility of a vacuum grabber, all the kids gave input into the final design. As a first year FIRST mentor, I was amazed at what they were able to accomplish. This feature won them the Delphi Innovation trophy at Peachtree, as well as the Xerox creativity award at Championships.
See photos here:
http://picasaweb.google.com/mwilson417/RobotPictures
Early scrimmage highlight video here:
http://www.youtube.com/watch?v=QeQSGmFnKAE