Vinnie Jones did mention it was Mick Harford being the hardest/toughest player, the only player the Crazy Gang never pulled an intiation ceremony stunt on or ever pranked during his time at Wimbledon.
Harford and Coton were drinking buddies at Brum and got into an altercation with a group fo builders in a pub, it did not end well for the builders.
As for the choices above, it would be Souness, could play as well as lead and be a handfull. Daniel Passerella who was at Fiorentina said Souness should watch himeself at Sampdoria as Passerella was the man. After about 15 minutes into the first game Souness nailed Passerella, who might have had to go off on a strecher.
In the return game Passerella avoided Souness but was kicking a young Vialli all over the show.
Souness would not let this go unpunished so he got Passerella in tunnel with a punch at full time, alledgedly Passerella ran an locked himself in a small room or cupboard until Souness left the stadium.