The Amazing Spider-Man #1: Spider-Man Meets the Fantastic FourMarch 1963It had been from my dad's old collection of comics in a crate he'd kept in our basement along with a lot of others. He had some old Star Wars ones in there too, but that was the first Marvel Superhero one I read. I really have no idea where it is anymore.
X-Men: God Loves, Man Kills.It was very dark, and a lot of the very evident metaphors went over my 6 year old at the time, but I've read it many times since, and it's probably one of the Comic Books stories that have stuck with me since then.It wasn't until House of M/Messiah Complex/Messiah War/Second Coming that I found a series I liked even more than this one.