it's Spani -- you youngsters have no idea.
It's difficult to rank what I believe are the top three in Grogan, Spani, and Newman. But, I still gotta give it to Grogan.
It always amazed me that Spani was such a fantastic middle linebacker, and he played under 230lbs, and had an undersized D-Line in front of him. I think Spani was about 225lbs, and we had nose guards playing at around 225lbs. I know players weren't as big back then, but if the O-Linemen were 265+, that's a lot of weight to give up.