I always consider Superman/Doomsday: Hunter/Prey to be the real conclusion to the Death of Superman storyline. In it, we see an epic rematch between the two that offers a nice capstone to the storyline. We also finally get an origin and backstory for Doomsday, so he's not simply the monstrous cipher of before. The villain is given a creative, unique origin that I remember making quite an impression on me when I first read this as a teenager. Not only that, we get an awesome slugfest on Apokolips. Part of the story involves Waverider and the Linear Men, characters that might be confusing if you hadn't read many DC Comics of the time period. All in all, this holds up quite well and was an enjoyable read.