Oman vs Saudi Arabia

Oman 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.

Oman has no safety score data yet; Saudi Arabia's 3.8/5 safety score (across 2 scored cities) — not enough data to call a winner.

Oman has no mobility score data yet; Saudi Arabia's 2.1/5 mobility score (across 2 scored cities) — not enough data to call a winner.

Oman has no culture score data yet; Saudi Arabia's 2.3/5 culture score (across 2 scored cities) — not enough data to call a winner.

Oman's passport reaches 44 destinations visa-free to Saudi Arabia's 48 — Saudi Arabia 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.

Saudi Arabia is better connected: 109M passengers/yr against Oman's 13M passengers/yr. Oman is quieter than 56 of 87 countries worldwide; Saudi Arabia is busier than 67 of 87 countries worldwide. Oman sees ~3 air passengers per resident a year; Saudi Arabia sees ~3 air passengers per resident a year — a derived figure, not itself ranked.

Oman runs 10°C to 46°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.