I would agree that Rance and Martin will be talked about as up there with the very best.
I missed Clay in the centre and remember him as an amazing full back with a phenomenal kick out. Rance probably pips him on the full back stakes but Clay earlier played in the midfield and the way the game was played was different.
Many comparisons between Hart and Martin. What both have is that they are more, and do more, than the champions of their era. Look at some champion forwards from the 1970s - they take great marks and kick great goals, not every time but a lot of the time. Hart, he took great marks and kicked great goals, not all of the time. But what happens when they don't mark and goal? Hart would keep his feet and be competing for the ground ball, Hart would be tackling, Hart was applying defensive pressure as a key position forward before anyone had the vocabulary to describe what he was doing. Dusty plays as a mid/forward and is one of the best just on that score. But he adds more, hard to describe but an example is the best description - how the hell did he get tackled in the PF and not only break the tackle but get up off the ground when being tackled by 2 Geelong players and make an effective disposal? It is that extra Hart did and Martin does that sets them apart. Hart has more flags and was almost a star from the start, Martin has very little ground to make up to be his equal.
Cotchin is a great player. Certainly a player of the calibre of the best. Maybe shaded by a few as mentioned above. But, what sets Cotchin apart is getting the captaincy young and the way he has developed as a captain. Maybe not amongst the very best mids like Maurice Rioli, Stewart et al, but certainly one of the best captains of any side ever.
We have quite a few players in the very top echelon at the moment, history will judge, but many of these players will be lauded for decades, along with those who were part of the 5 flags we won between '67 and '80.
DS