South Africa vs Tanzania

South Africa's $1,294/mo monthly cost (across 4 scored cities); Tanzania has no monthly cost data yet — not enough data to call a winner.

South Africa's 0.8/5 safety score (across 4 scored cities); Tanzania has no safety score data yet — not enough data to call a winner.

South Africa's 2.1/5 mobility score (across 4 scored cities); Tanzania has no mobility score data yet — not enough data to call a winner.

South Africa's 3.4/5 culture score (across 4 scored cities); Tanzania has no culture score data yet — not enough data to call a winner.

South Africa's passport reaches 65 destinations visa-free to Tanzania's 47 — South Africa 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.

Between the two, South Africa is better connected — 38M passengers/yr vs 5.7M passengers/yr. South Africa is busier than 50 of 87 countries worldwide; Tanzania is quieter than 70 of 87 countries worldwide. South Africa sees ~65 air passengers per 100 residents a year; Tanzania sees ~10 air passengers per 100 residents a year — a derived figure, not itself ranked.

South Africa runs -2°C to 33°C for most people; Tanzania runs 16°C to 36°C for most people. Mafinga runs colder, at 1°C. Depends on you — which range fits your tolerance is the real question here, not a score.