I'm that rare example of a terrible person who, nine times out of ten, likes the main character best... Everyone has different opinions, but personally for me I can't stand characters who are just downright mean or spend too much time whining about how sad they are and how horrible their life is, as it just gets me really down too. I do like characters to be "nice" but, as most people would agree, that can be pretty darn boring if that's their only personality trait.
My main character... Well, almost everyone who's voiced an opinion seems to like Polyphemus so far! But I think that's because nobody's seen much of him yet so for now he's just "adorable" or "cute", and that's the only thing for people to judge him on. I don't know what people will think as the story continues? I think there's definitely potential for people to think either way, but I hope most people continue to like him. I certainly do. :')