Who's your お気に入り character? Were あなた sad when [insert character died]/Did あなた cry when [insert character]died? Who is hot? Do あなた hate [insert character]? Why doesn't anybody like [insert house/character/book/movie]? (Usually this pertains to Ginny.) Why do people like [insert house/character/book/movie]? Which house would あなた want to be in? [insert character/house/book/movie] または [insert character/house/book/movie]? Should [insert character] have married [insert character]?
Mostly because all of those (^) 質問 have been asked at least twice, for almost every character that has ever been mentioned in the entire series. Not to mention that they're very generic 質問 to begin with.
"Who's hotter?" "Who would あなた rather date?" "Who's your お気に入り character?" "Which house is better?" "Who should have ended up with [insert character here]?
These are the ones that where on the 上, ページのトップへ of my head. The "who's hotter" and "who's better with who" 質問 annoy me the most.