Australia vs New Caledonia

Australia's $2,718/mo monthly cost (across 12 scored cities); New Caledonia has no monthly cost data yet — not enough data to call a winner.

Australia's 3.7/5 safety score (across 12 scored cities); New Caledonia has no safety score data yet — not enough data to call a winner.

Australia's 2.7/5 mobility score (across 12 scored cities); New Caledonia has no mobility score data yet — not enough data to call a winner.

Australia's 3.6/5 culture score (across 12 scored cities); New Caledonia has no culture score data yet — not enough data to call a winner.

Australia's passport reaches 119 destinations visa-free; New Caledonia has no passport baseline yet. Not scored in the tally.

Australia is better connected: 148M passengers/yr against New Caledonia's 539K passengers/yr. Australia is busier than 71 of 87 countries worldwide; New Caledonia is quieter than 86 of 87 countries worldwide. Australia sees ~6 air passengers per resident a year; New Caledonia sees ~2 air passengers per resident a year — a derived figure, not itself ranked.

Australia runs 0°C to 33°C for most people; New Caledonia runs 12°C to 33°C for most people. Bathurst runs colder, at -8°C and Alice Springs runs hotter, at 43°C. Depends on you — which range fits your tolerance is the real question here, not a score.