Let me try and explain my thought process, first I looked at the list and picked out "special" ones that I thought people could connect with, only Okon and Thommo were the ones to strike off initially for me, that left me with the following.
Australia Ned Zelic (2005–06) - top of list, a reason common to all people playing the game (I thought..)
Australia Jade North (2007–08) - Captain during title winning year, thought this was a bit obscure / old
England Michael Bridges (2010–11) - Lulz factor, again an acquired taste not common among all players
Australia Jobe Wheelhouse (2011–2013) - Last proper captain
Australia Ruben Zadkovich (2013-) - Row z, fan favourite
To me there was no stand-out amongst the choices so I went with the simplest and clearest one to pick out as being special, the one at the top of the list.

