Turkmenistan vs Uzbekistan

Turkmenistan has no monthly cost data yet; Uzbekistan has no monthly cost data yet — not enough data to call a winner.

Turkmenistan has no safety score data yet; Uzbekistan's 2.2/5 safety score (across 1 scored city) — not enough data to call a winner.

Turkmenistan has no mobility score data yet; Uzbekistan's 1.8/5 mobility score (across 1 scored city) — not enough data to call a winner.

Turkmenistan has no culture score data yet; Uzbekistan's 2.0/5 culture score (across 1 scored city) — not enough data to call a winner.

Turkmenistan's passport reaches 13 destinations visa-free to Uzbekistan's 29 — Uzbekistan 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.

Turkmenistan has no annual passenger volume data yet; Uzbekistan has no annual passenger volume data yet — not enough data to call a winner.

Turkmenistan runs -13°C to 45°C for most people; Uzbekistan runs -11°C to 42°C for most people. Gazojak runs colder, at -24°C; Qŭnghirot runs colder, at -23°C. Depends on you — which range fits your tolerance is the real question here, not a score.