Ron Henry every time. He wasn't just steady and reliable, he was a fcuking rock. No player I've watched since has been such a cert in the tackle, he seemed nigh on impassable.
Some might argue Ron never got forward enough but with the likes of Mackay and Dyson in front of him and an attack that scored goals for fun why would he need to? It was at the back where he was needed and that's where he excelled.
Knowles was great, something of an entertainer, a real folk hero, fans loved him for the way he could recover once beaten and fly into the tackle (often taking the player with him) but let's be honest he was also prone to the occasional coc k-up, something you could never say of Henry.
Chris Hughton was decent overall but there were times when the crowd would get on his back.
Pat Van Den Hauwe was probably the hardest of them all, a fearsome tackler who if he didn't get the ball he usually got the man, but you'd have to say by the time he joined us from Everton his best days were already past.
Ziege was strong in the tackle and his free-kicks were guided missiles but he was too in-and-out of the team to have made enough of an impact.
BAE in his prime was awesome, though another who always had a brainfart in him.
Bale was brilliant getting forward but never quite so solid at the back. Like Walker he relied heavily on turbo to make up for a lack of positional awareness. But like Mackay, Bale has to be fitted in somewhere - hopefully in our attacking line-up.
I love Rose for the way he so resolutely imposes himself on his opponent but whilst he's excellent at getting forward to support our attacks his crossing still leaves something to be desired.
So it has to be Henry for me - every time.