Guam vs New Zealand

Guam has no monthly cost data yet; New Zealand's $2,187/mo monthly cost (across 11 scored cities) — not enough data to call a winner.

Guam has no safety score data yet; New Zealand's 4.1/5 safety score (across 11 scored cities) — not enough data to call a winner.

Guam has no mobility score data yet; New Zealand's 2.4/5 mobility score (across 11 scored cities) — not enough data to call a winner.

Guam has no culture score data yet; New Zealand's 3.1/5 culture score (across 11 scored cities) — not enough data to call a winner.

New Zealand's passport reaches 120 destinations visa-free; Guam has no passport baseline yet.

Not scored in the tally.

New Zealand is better connected than Guam — 39M passengers/yr vs 3.8M passengers/yr.

Guam is quieter than 72 of 87 countries worldwide; New Zealand is busier than 52 of 87 countries worldwide. Guam sees ~23 air passengers per resident a year; New Zealand sees ~8 air passengers per resident a year — a derived figure, not itself ranked.

Guam runs 22°C to 34°C for most people; New Zealand runs -4°C to 27°C for most people.

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