7. Amazing Spider Man - Issue 121
Did she fall...Or was she pushed? To this day, the ambiguity surrounding the death of Peter Parkers girlfriend Gwen Stacy seems to trouble readers almost as much as it continually troubles Peter himself. Did his web line snap her neck as he tried to save her from that bridge, or had The Green Goblin already disposed of her beforehand? The events of Amazing Spider Man 121 still resonate to this day and have inspired more great storytelling than could be mentioned here (although special mention must go to Jeph Loeb & Tim Sales masterful Spiderman: Blue and a personal favourite, Peter Parker: Spider Man 44 47, by Paul Jenkins & Humberto Ramos).