This post originally appeared as a reply in another thread, but I thought it would make a good discussion thread in its own right.
I've found that opinions about Cheung Mo Gei (at least at this forum) tend to break along gender lines: women tend to condemn him for his alleged "indecisiveness" in his personal affairs whereas men tend to admire him for his accomplishments in wulin as Ming Cult Leader and the enlightened, compassionate manner in which he conducted himself as a wulin man (to a degree unparalleled by any other Jin Yong protagonist).
As a corollary, men tend to not let Cheung Mo Gei's difficulties in his personal affairs color their view of his wulin accomplishments, whereas women tend to focus so much on his personal affairs that it also colors their views of his wulin activities.