Complex sentence: "Chk Chk Chk" is the most common pronunciation, which the URL of their official website and the title of their Myspace page suggest is the preferred pronunciation.
Split into simpler sentences: Chk Chk Chk is the most common pronunciation. The URL of their official website and the title of their Myspace page, however, suggests that "Chk Chk Chk" is the preferred pronunciation.