Where the hell do you start with this? Here goes my list, right off the top of my head, which means that you could ask the same question tomorrow and get an entirely different answer:

Jack Lambert
Jack Ham
Andy Russell
Mike Webster
Dermontti Dawson
Benny Roethlisberger
Heath Miller
Mark Breuner
Jerome Bettis
Rod Woodson

Needless to say that there are at least a dozen others that could be on this list. These are just the ones I came up with at this point.