Qatar vs Saudi Arabia

Qatar has no monthly cost data yet; Saudi Arabia's $1,439/mo monthly cost (across 2 scored cities) — not enough data to call a winner.

Qatar's 4.0/5 safety score (across 1 scored city); Saudi Arabia's 3.8/5 safety score (across 2 scored cities) — not enough data to call a winner.

Qatar's 2.6/5 mobility score (across 1 scored city); Saudi Arabia's 2.1/5 mobility score (across 2 scored cities) — not enough data to call a winner.

Qatar's 3.4/5 culture score (across 1 scored city); Saudi Arabia's 2.3/5 culture score (across 2 scored cities) — not enough data to call a winner.

Qatar's passport reaches 66 destinations visa-free to Saudi Arabia's 48 — Qatar 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, Saudi Arabia is better connected — 109M passengers/yr vs 46M passengers/yr. Qatar is busier than 54 of 87 countries worldwide; Saudi Arabia is busier than 67 of 87 countries worldwide. Qatar sees ~17 air passengers per resident a year; Saudi Arabia sees ~3 air passengers per resident a year — a derived figure, not itself ranked.

Qatar runs 6°C to 51°C for most people; Saudi Arabia runs 6°C to 47°C for most people. Turaif runs colder, at -9°C. Depends on you — which range fits your tolerance is the real question here, not a score.