Croatia vs Montenegro

Croatia's $1,715/mo monthly cost (across 3 scored cities); Montenegro's $1,181/mo monthly cost (across 2 scored cities) — not enough data to call a winner.

Croatia's 3.0/5 safety score (across 3 scored cities); Montenegro's 2.0/5 safety score (across 2 scored cities) — not enough data to call a winner.

Croatia's 2.7/5 mobility score (across 3 scored cities); Montenegro's 1.5/5 mobility score (across 2 scored cities) — not enough data to call a winner.

Croatia's 3.2/5 culture score (across 3 scored cities); Montenegro's 1.2/5 culture score (across 1 scored city) — not enough data to call a winner.

Croatia's passport reaches 103 destinations visa-free to Montenegro's 71 — Croatia 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.

Croatia is better connected: 13M passengers/yr against Montenegro's 3.2M passengers/yr. Croatia is quieter than 55 of 87 countries worldwide; Montenegro is quieter than 75 of 87 countries worldwide. Croatia sees ~3 air passengers per resident a year; Montenegro sees ~5 air passengers per resident a year — a derived figure, not itself ranked.

Croatia runs -9°C to 36°C for most people; Montenegro runs -10°C to 33°C for most people. Depends on you — which range fits your tolerance is the real question here, not a score.