Thank you so much for the insight! I'm just wondering if guaranteed entry also takes into account SEAS, I know access Melbourne isn't a thing though. I'm honestly really set on law but I definitely prefer the atmosphere and the proximity of UoM over Monash, what a struggle!
Guaranteed entry doesn't take into account SEAS or Access Melbourne but the JD has a Graduate Access Melbourne (GAM) scheme which you can apply for if you are from under-represented group (indigenous, refugee, rural, low SES background) or experienced difficult circumstances during uni. The scheme doesn't guarantee anything but increases your chances of getting a full-fee or CSP one.
If a CSP place is important to you, Monash is probably the best option, since you are set on law. A full-fee place/bursary place is fairly achievable at Melbourne (70-75 WAM with 155-165 on the LSAT), but CSP places are fairly limited (but still achievable).
As for me personally, I was never set on law or gave it much consideration until uni. And not doing law isn't the be and end all to me, so the lack of CSP places wasn't much of a concern.