Back on topic perhaps (man there is a lot of whining, hate, jealousy, lame arse tribalism, and general bitchiness on this forum)
Biggest grub to me is Cameron Smith. Sneaky master grub he is, always trying to strip the ball without being seen, gives away penalties on purpose when team stretched on defense, complains about every penalty or decision that goes against the Storm (or Australia/Qland) and generally just pushes the boundaries in every way.
Saying that he is one of the best - cannot deny. And his Melbourne team are amazing though I don't like the style of footy they play particularly.