I really like your list of great Rucks.
I would assume you're confining the list to the known Rucks of say past five or so decades or so?
Three exceptions I must place, if I may:
Polly Farmer is a must include ruck in my view. Every old timer tells me of his prowess and how he changed rucking. And that handball.
So he is must for me.
John Nicholls is another player so powerful and elite. Big Nick led from the front too. And Big Nick was the perfect descriptor too.
And on Jim Stynes, just a no from me in that class you've listed. On my eye, terrific follower but more a consistent very very good player than all time great.
So stepping to the 60s till now, I'd have this group as of the best Rucks:
- G Farmer
- G Dempsey
- S Madden
- L Thompson
- G Moss
- D Cox
- J Nicholls
If I've missed anyone at that level, I'll amend but can't think of anyone at the moment.