I would rather know when I am going to die, it would give me enough time to repent my sins, say sorry to people that I can say it to, and with enough time I can still search out some enjoyment with life, being that I am not sure what is on the other side.
Well, it is also depends on how painful the death is. If it is not so painful I could dwell on a self poetry in my mind.
Then again a quick and painless death wouldn't be that bad, if I didn't see it coming and it just hits me.