*Warning: spoilers ahead!!*

Sorry Amber, but for me, this is the easiest choice ever - I would probably choose to bring back Kutner over any deceased fictional character, as long as he could be happy as well as alive. Despite the way in which he went indicating him actually wanting to die, I still wonder if, had the others picked up on his depression, he could have been helped through it. I know bringing Amber back would make Wilson happy, but Wilson doesn't have a very long lifespan, so either way one of them would be left with a broken heart. The series was never the same without Kutner...