>>2751438I like all the characters in Oreimo a lot, but I decided to focus on Kirino because she has many visual and other character traits that I'm attracted to.
Eye and hair color, 'cute little fang', energetic personality and so on. I also have two older sisters myself so the story about sibling relations was one of the things that got me interested about Kirino as well.
They are somewhat specific and personal reasons, so they might not be that helpful if you're looking to give character a second chance.