Yeah it's not worth focusing equally on all subjects given how the VCE works
Hm,
IMO 2 great study scores contrasted to four average ones won't be as good as 6 SS in the median of Average and great. You have to be careful when people say things like "You must be studying for at least 2.5 hours a night" because this isn't entirely true. To put this in retrospect I have this scenario;
Person A: Studies primarily MM/SM intensively, does every text book question etc etc but in turn sacrifices time for his/her other 4 subjects.
Person B: Studiously avoids quantity, and instead focuses on getting the most out of out for the least amount. In simple terms, does more of the harder questions in an effort to diversify his/her knowledge. This can now be done across all 6 subjects.
It's a bit wish washy, but Quality>Quantity for sure, time management and diversification > Prioritization , so IMO it's incidentally worth focusing equally. You have to be smart in selecting what you do, anyone can just blast out all the TB questions and focus on 2 subjects and spend set 'x' amount of time on every subject, only those who are 'more switched on' can do the contrary.
IMO Reality is, what ever works for you hey.