Sometimes I like movies where everyone is killed, sometimes I like movies where no one is killed, sometimes I like movies when people are killed and returned. It has to do with the context you give it. Being an agronomist I've come to know (for sure) that everything has to do with the situation and that there are no recipes, just objectives and conditions. If you learn well about these conditions, you'll find the best way to reach your objectives, if you know what they are to begin with. In sum, "Death in stories" has much to do with the feeling/thought/scene/crutch/material you want to bring forth, with the public you're trying to please (what they have seen, etc.) and with the material you have in hand (your character, the setting, the historic). Your intution and ability in bringing this all together will then decide if you succeed.
Take R.R. Martin. He does it all: people who die and are brought back, people who die and never come back, people who last against all chances, people who die against all chances. And he makes all of those work so well I'm feeling like reading the whole thing again.
(I guess LigH got a good example.)
Imagination vs Presentation isn't a recipe I'd follow either. Mainly because they're not actually substitutes of each other: they have their own time and spaces to be.