The Shah was a brutal and bloody butcher who had thousands tortured and killed, but he, like his father, did much to modernize Iran, raising literacy levels, liberty for all religions and women... Development was everywhere, the economy was strong...
Khomeini and the Islamic regime, of course, were and are far worse.
"Fourth the Iranian People forced the U.S Government to bring the shah back and the Government refused."
Taking hostages did not force the U.S Government to do anything other than apply sanctions that are still going on, wrecking the economy. It also got the country to be one of the most hated by Americans to this very day.