You see both players are immortals in our club and always will be. The difference with Lamb and Mortimer however is that Turvey was part of a dynasty of legends that dominated the 80s - the players that team had were the best of that golden era.
Terry Lamb had a different affect of the game. He was head and shoulders our best player during the 90s and it was him he broke records such as the 2nd highest number of tries ever, most number of games ever etc... when his career came to an end (originally) in 1995, the year we won the comp. Also Lamb was captain of our greatest ever lineup in the painting, Berries to Bulldogs.
Both players are very hard to split though, but I think Lamb only just inches in front of Turvey, but it's a matter of opinion.