[lukevanoort]

Lets see, these are the game pieces 587 has
Year - Piece - Use
2001 - Balls - Can be thrown at people
2002 - Balls - Can be thrown at people
2003 - Bins - Anything from drills to buttons can be stored in them
2004 - Balls - Can be thrown at people, chair
2005 - Tetrahedron - No known use
2006 - Poof Balls - Can be thrown at people, cushion, soft mechanical stop
2007 - Tubes - Can be thrown at people, superultimate frisbee

Pretty easy to see which are my favorites, the 2006 and 2003 game pieces. 2003 edges out 2006 though, since you don't always need a soft mechanical stop or cushion, but, in my experience, a FIRST team can never have too much storage.