Yeah, pi's right, both JCU and Griffith look at ATAR only.
On top of that you still have UoM, where you can get a guaranteed place into the MD with an ATAR of 99.90+.
And then there's also graduate medicine, there are three universities in Victoria which have graduate courses, UoM, Monash and Deakin. Out of those, UoM is the hardest to get into, but I know that it is quite a fair bit easier to get Monash or Deakin (as they are not metro based).
That regardless, the GAMSAT is partially academic, there's a section on Humanities and Logical Reasoning (comparable to S1 of the UMAT). There's essays and then there's a Science component. Note that this format may or may not benefit you - but in the end, those who work hard and persevere will be rewarded.
If i cant get into them, do you think its worth sitting the GAMSAT??
Why would you NOT want to sit the GAMSAT? If you want to do medicine, I think it's a good opportunity.
Moderator action: removed real name, sorry for the inconvenience