Kenya vs Nigeria

Kenya has no monthly cost data yet; Nigeria has no monthly cost data yet — not enough data to call a winner.

Kenya's 1.2/5 safety score (across 1 scored city); Nigeria has no safety score data yet — not enough data to call a winner.

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

Kenya's 2.9/5 culture score (across 1 scored city); Nigeria has no culture score data yet — not enough data to call a winner.

Kenya's passport reaches 42 destinations visa-free to Nigeria's 25 — Kenya 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.

Nigeria is better connected than Kenya — 13M passengers/yr vs 9.0M passengers/yr. Kenya is quieter than 63 of 87 countries worldwide; Nigeria is quieter than 54 of 87 countries worldwide. Kenya sees ~18 air passengers per 100 residents a year; Nigeria sees ~7 air passengers per 100 residents a year — a derived figure, not itself ranked.

Kenya runs 14°C to 32°C for most people; Nigeria runs 21°C to 40°C for most people. Garissa runs hotter, at 41°C; Katsina runs colder, at 6°C. Depends on you — which range fits your tolerance is the real question here, not a score.