Read my mind. The true test is evaluating the games greatest ruckman in comparison to greatest players of any position. Isolating the past 15 years greatest players where would Dean Cox rank vs Ablett, Brown, Scarlett, Judd, Riewoldt, Buddy, Hodge, etc. put it this way, Cox isn't talked about in that same conversation let alone at number 4 overall (where knighta ranks Grundy in the last few drafts).
Personally, I'd have Cox in that same conversation.