Saudi Arabia might export an extremist [...]
but they don't advocate terror
Some contradiction right there.
Iran is probably the world's largest [...]
militarily expansionist.
Iran has invaded which countries in the last 2000 years, and how does this compare with e.g. the Soviet Union, the US, the UK, the Mongols, the Incas?
Iran is probably the world's largest terror exporter
Reference needed. Which large scale terror attacks in the last few decades (e.g. 9/11 or the attacks in Paris/Nice) were supported by Iran?