Guam vs New Caledonia

Guam has no monthly cost data yet; New Caledonia has no monthly cost data yet — not enough data to call a winner.

Guam has no safety score data yet; New Caledonia has no safety score data yet — not enough data to call a winner.

Guam has no mobility score data yet; New Caledonia has no mobility score data yet — not enough data to call a winner.

Guam has no culture score data yet; New Caledonia has no culture score data yet — not enough data to call a winner.

not scored

Guam is better connected: 3.8M passengers/yr against New Caledonia's 539K passengers/yr.

Guam is quieter than 72 of 87 countries worldwide; New Caledonia is quieter than 86 of 87 countries worldwide. Guam sees ~23 air passengers per resident a year; New Caledonia sees ~2 air passengers per resident a year — a derived figure, not itself ranked.

Guam runs 22°C to 34°C for most people; New Caledonia runs 12°C to 33°C for most people.

Depends on you — which range fits your tolerance is the real question here, not a score.