This opionion is probably only unpopular among a small group of people, but in my opinion 'classic' Sierra adventure games franchises like King's Quest, Space Quest and Leisure Suit Larry consist of bad games. They are not challenging or 'hardcore' or whatever, they are just horribly designed: a game should not be rendered unbeatable because you performed some meaningless arbitrary action in the beginning, especially not if that didn't happen because of a bug or oversight but because the designers are sadists.
Also, I actually liked the ending of Metal Gear Solid 2.
Also, I actually liked the ending of Metal Gear Solid 2.