Iran is liked about as much as the US and certainly more than Israel.

https://www.foreignaffairs.com/iran/america-has-lost-arab-wo...

Iran has fomented discord in a number of countries, most notably Syria and Lebanon. I think they are “rational” in the sense that they are pursuing their goals of eliminating US influence over the Middle East - but many other states in the MidEast would see that goal as “irrational” in itself.