Sunni view of Muawiyah
Sunni historians see him not as a religious ruler but a rebel, although he was a companion of the prophet, but still not worthy of respect as he fought the khalifa of the time Ali. They say that if there was a fifth rightly guided caliph it would have been Hasan but muawiyah wanted to usurp the throne from him.
Allah, make him guided, a guider, and guide people through him. [2]
He is also favorably depicted in a hadith from Bukhari which reads:
..Muawiya who was really the best of the two men said to him, "O 'Amr! If these killed those and those killed these, who would be left with me for the jobs of the public, who would be left with me for their women, who would be left with me for their children?" Then Muawiya sent two Quraishi men from the tribe of 'Abd-i-Shams called 'Abdur Rahman bin Sumura and Abdullah bin 'Amir bin Kuraiz to Al-Hasan saying to them, "Go to this man (i.e. Al-Hasan) and negotiate peace with him and talk and appeal to him." So, they went to Al-Hasan and talked and appealed to him to accept peace..." [3]
Sunni scholars rationalize that Hasan's willingness to abandon the caliphate to Muawiya suggests that Hasan did in fact think Muawiya an apostate, renegade, and hypocrite. They argue that Hasan did so with reasons such as for the sake of peace and not causing Fitnah, he gave it to muawiyah also for the reason that he had little support and muawiyah conquered most of the cities in the empire and forced them into bayah. Hasan told Muawiyah not to make the khilafah into a monarch but he went against it by giving the khilafah to his son Yazid without a shura, sunni scholars agree that those acts of muawiyah are against islam, muawiyah openly defied and broke the promise of hasan al-mujtaba while at the same time not allowing a shura to elect a new leader of islam, nevertheless he was a companion of the prophet and must be respected. [4]
Sunnis discourage criticizing Muawiya's character and rule, observing his status as a companion of Prophet Muhammad, even though he did go against many rules of the Qu'ran while at the same time making his followers curse Amir ul Mumineen Ali Ibn Abi Talib. [5]