https://freedomhouse.org/report/freedom-world/2018/iran
https://freedomhouse.org/report/freedom-world/2018/saudi-ara...
They're both horrible, oppressive places but if you were forced to move to one Iran would be the clear pick.
Care to cite any reports of any Iranian bombings of civilians or starving of civilians in Yemen? Or in fact any evidence of Iranian involvement at all (beyond the usual "our confidential Saudi/US sources say")?
The UN put up a resolution to denounce Iran from doing this just last month, but Russia vetoed it[0].
[0]https://www.nytimes.com/2018/02/26/world/middleeast/iran-yem...
The UN also tried to start an investigation into Suadi war crimes, but it was blocked by the UK. https://www.independent.co.uk/news/world/middle-east/boris-j...
Regarding "training Shia insurgents", do you know that Houthis are Zaidis and Iranians are Twelvers? Do you have any evidence of claims you make about training with the "Imperial Guard" (are we doing Star Wars now)?
The only countries even somewhat denying Iranian involvement in Yemen are its allies in the UN Security Council, and Russia isn't even really denying it, just blocking resolutions. Iranian soldiers have been killed or captured non-stop over the last 20 years in Iraq, Syria, Afghanistan and Lebanon. They have directly supplied every Shia militant group in the Middle East for decades.
The fact that you deny this makes me believe you've been told to.
Lambasting SA for fighting in Yemen and then praising Iran, the other country fighting in Yemen, is beyond ridiculous.
Trashing SA for being an authoritarian dictatorship and then praising Iran, another theocratic, authoritarian dictatorship, that is just as happy to have the secret police disappear its citizens, is intellectual malfeasance.