I dunno who is seen as the greatest rugby league captain of all time but whoever he is, I don't think he'd be achieving much more.
Simon was always a captain who did his best work with a motivated squad - ie 2011, Kiwis. He isn't a turmoil captain. Micheal Luck might've fit as one of those. Steve Price, quite probably as well.
As for Hoffman, his form isn't what he'd want it to be, no doubt. NSW will still pick him because he's been their best forward for 2-3 years. He needs to offer more as a left side 2nd rower. As a captain? What chance do you give him? At least he is quite comfortable remonstrating with refs and not letting them run over us roughshod, like Mannering wasn't able.