lets see wht the prophet said abt Muawiyya shall we??
We read in Sahih Muslim hadith number 6298, a tradition narrated by Ibn Abbas:

"I was playing with children and Allah's Apostle (peace be upon him) happened to pass by (us). I hid myself behind the door. He (the Prophet) came and he patted upon my shoulders and said: Go and call Mu'awiyah. I returned and said: He is busy in taking food. He again asked me to go and call Mu'awiyah to him. I went (and came back) and said that he was busy in taking food, whereupon he said: May Allah not fill his belly! Ibn Muthanna said: I asked Umm Umayyah what he meant by the word Hatani. He said: It means "he patted my shoulders".

hmmm Muawiyya never could satisfy himself... thats why he lusted after power and ensured his line who were all despots with the exception of the King that u refer 2 as caliph 5