60's Ray Nitschke-how can you not love a player who will play the game on a broken leg and his performance in the longest yard. The guy just screamed old school blood and guts football. RIP Mr. Nitschke
70's Jon Brockington-a solid, underrated running back who was one of the few bright spots on some not so good early 70's teams
80's Mike "Mad Dog" Douglass- imagine a 200lb LB these days. Mad Dog seemed to be in on every play and again was an underrated player who had several very solid years for Packers teams that were known back then for their offense.
90's LeRoy Butler- LeRoy just seemed to love to play the game and always had a smile on his face. He was a leader, along with Reggie, and hey, he created the Lambeau Leap.
00's William Henderson-played 11 or 12 season with the Packers in 90's and 00's. Unsung hero of a lot of good teams. One of the best blocking FB's of his time and was a very good receiving weapon as well. Just a lunch pail kind of player that showed up and did his job every week.
10's TBD, but that Aaron Rodgers guy is pretty promising!