EliseHearts,
I also advocate a lazy well diversified approach.
Vanguard Lifestyle fund outside of Super. Chose the one that suits your risk appetite, and don't sell.
Cheap international index fund in Super. Mine doesn't offer Vanguard, but there should be something with good exposure there.
Personality, behaviour, savings rate, and cost of living, will likely impact the final outcome the most.
Good luck, and know that it may take some time and self reflection to find the approach that works best for you.
Murdoch