We all know Kyle Rayner as the Lord of the Fridge, Collector of Angst and Bringer of Death to Supporting Cast Members. Certainly the young lady in black (or dude on the skis if you so prefer) seems to follow Kyle like a lost puppy. I mean, she's picked up not only every woman the boy takes to bed with him but much of the Silver Age Green Lantern Corps during Kyle's early years. (Seriously, read the first 50 issues of Marz's run on Green Lantern. It was supposed to be all Hal's fault, but really it was everyone Kyle came into contact with who got folded, spindled, and mutilated.) Thing is, there's another trend that popped up toward the end of Winick's run and has stuck with the guy since.
Start with Green Lantern #150 where (along with the battery) he brings the formerly deceased Guardians back to life as children (with little girls too!).
Then look at the Obsidian Age storyline in JLA (JLA #66-76) after that, where he agrees to offer up his heart so that the souls of the rest of the League can be safely housed there for a few thousand years and then be brought back to life.
Then he goes to outer space, and encounters the resurrected and possibly undead Kilowog. Kilowog had been brought back to life by Boodika and several other ex-lanterns in the Last Will and Testament of Hal Jordan (I have no fucking clue what is up with this storyline since Green Lantern 10-13 because this is the storyline where Kilowog came back and where Oa was reconstructed so it can't be totally retconned out, but Boodika can't have been there and she was a major antagonist.) So Kilowog gets collected by the keepers of his people's afterlife because he's from one of those planets where they frown on this sort of thing. Which leads to the bright spot of Raab's run (Green Lantern #169 I believe, but I didn't like Raab's run so I've only read this one a few times) when Kyle literally follows a friend to Hell and physically pulls him back to the land of the living. We can count that.
And then, of course, there's the famous Rebirth storyline where Kyle retrieved the body of Hal Jordan from the sun so that Hal could be brought to life in a storyline involving Ganthet and the Spectre. Since Kyle was pretty damned active in bringing this about, I'd like to count that as well.
Then there's the end of the Ion maxiseries where Kyle brings his mother to life until she tells him that's a bad idea. This one probably only fell through because (unlike everyone else he's seen resurrected) she's a religious civilian woman and not a superhero who has actually spoken to various deities from a number of different cultures. Kind of a different view on the afterlife there. Still, despite being a tap back, this counts.
So, there we have it. Kyle Rayner has either actually performed or facilitated the resurrection of a dead person (or persons) on five different occasions. These aren't deaths that are just retconned away as never having happened. These are people who were in-continuity dead, and the plot was that he went out of his way and brought them back to life.
And, if you take into account that there were 5 dead Leaguers (not counting Kyle) in that JLA story, and the dead Guardians numbered 15, 31, or 35 (Kalinara and I are still arguing this one), that's actually quite a lot of people.
Under 5 different writers come to think of it.
I have no impressive conclusion to this train of thought. Its just one of those things that keeps popping up. Only while I'm absolutely certain they've done the dead girlfriend/relative thing consciously (so that Kyle can angst that he's cursed and be reluctant to grow close to anyone) I don't think they've realized yet that they created a character who raises the dead as a hobby (or that the two trends are intrinsically connected characterization-wise). There would be more in-jokes about it at convention panels I imagine.