Should university subjects scale like vce?
No.
For example is a HD in a level 1 subject at melb uni the same as a HD in a level 3 one?
This question needs context.
The year level of units is taken into account in various ways. For instance, most honours admissions are on the basis of performance in select 3rd year units. For most graduate applications, year levels are given different weighting in terms of GPA - therefore a HD in first year contributes less to GPA than an HD at 3rd year level.
Please support your opinions with reasons please.
Firstly, as others have mentioned, there is really no remotely valid way of comparing the "difficulty" and "value" of particular units at university level. Different students perform better/worse in different subject. A unit that may be an easy HD to one person, will be a nightmare for another.
Secondly, if there are major disparities - e.g. majority of students in
subject A will get an HD without attending any lectures and studying less than an hour a week vs
subject B where the majority of students with 100% attendance and 10hours+ study a week struggle to get a C - then the solution is curriculum design, not scaling.
Because unlike in other universities, undergrad courses in Melb Uni are OFTEN a conduit to competitive graduate entry courses; in other words, it's VCE all over again.
I agree in principle, but practically speaking there's usually other factors that limit the advantage of the "easy subject" applicant. In medicine for instance, there's the GAMSAT and the interview (except at UQ). Law has LSAT. Honours generally prescribes specific units at specific year level.