Marshall Islands vs Papua New Guinea

Marshall Islands has no monthly cost data yet; Papua New Guinea has no monthly cost data yet — not enough data to call a winner.

Marshall Islands has no safety score data yet; Papua New Guinea has no safety score data yet — not enough data to call a winner.

Marshall Islands has no mobility score data yet; Papua New Guinea has no mobility score data yet — not enough data to call a winner.

Marshall Islands has no culture score data yet; Papua New Guinea has no culture score data yet — not enough data to call a winner.

Marshall Islands's passport reaches 80 destinations visa-free to Papua New Guinea's 45 — Marshall Islands opens more doors without a visa. Passport strength shifts over years of naturalisation, not months of planning, so it's a long-horizon footnote — not scored in the tally.

Marshall Islands has no annual passenger volume data yet; Papua New Guinea's 1.4M passengers/yr annual passenger volume (across 1 scored city) — not enough data to call a winner.

Marshall Islands runs 23°C to 33°C for most people; Papua New Guinea runs 20°C to 33°C for most people. Depends on you — which range fits your tolerance is the real question here, not a score.