Mali vs Niger

Mali has no monthly cost data yet; Niger has no monthly cost data yet — not enough data to call a winner.

Mali has no safety score data yet; Niger has no safety score data yet — not enough data to call a winner.

Mali has no mobility score data yet; Niger has no mobility score data yet — not enough data to call a winner.

Mali has no culture score data yet; Niger has no culture score data yet — not enough data to call a winner.

Mali's passport reaches 30 destinations visa-free to Niger's 32 — Niger 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.

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

Mali runs 11°C to 44°C for most people; Niger runs 6°C to 46°C for most people. Depends on you — which range fits your tolerance is the real question here, not a score.