There were exceptions within the Muslim community, I had a couple of Iranian friends who, while remaining Muslim, liked the USA. One of these individuals I learned was killed in the revolution (an engineer working on a desalinization (sp?)plant). Of course, they were careful to distance themselves as Persians from the Arabs.
The Arabs which I met were all quite wealthy. (early 1960's)
That being said --- I can not say the same from my own experience of any Arabs that I came to know and work with. Having never done business in Israel - I can't compare -- but in the rest of the middle east, only the Turks and Iranians were professional and reliable business partners in my experience.
I believe that once the younger generation of Persians is freed from the maniac mullas -- Iran will very quickly join the civilized nations of the world as a welcomed partner.
Semper Fi