There's no single manga that I hate, only ones I want to avoid (Rent a Girlfriend) due to their fame. I tend to avoid mangas that seem bad, or have low scores
My first anime was Midori no Hibi. I started because my cousin was talking about how cool and awesome some action anime was, I got interested and searched for anime. Saw midori no hibi and really liked, went to tell him about it, and he looked extremely disappointed with me.