In Arabic, the sound that Quran begins with doesn’t have an exact equivalent in English. “Q” is always followed by a “U” in English making the pronounced sound “Qween”. In Arabic, only the first sound of the letter “Q” is present and English speaking people are not used to pronouncing it like that. So some people prefer to write it as they pronounce it, with a “K”. Also, the spelling Ghaddafi, or any other ways in which it is spelt, can’t sound what it is like in Arabic. There is simply no sound in English to pronounce the first part of his name properly. The nearest you can get to, is Ghadafi.