My optimal way to die, the way I see it, is quietly in my sleep. Or just poof. Like that. Heart failure or something. Sudden, unexpected (or maybe a bit expected, like of old age), and without pain and long-term diseases.
That's kind of a thing for me: I'm not afraid of dying, but I am definitely scared of HOW I'll die. Like... how I'm actually convinced that I'll die from either stabwounds or drowning. And I don't know where that conviction came from O__o It's just been there since I was like... single-digit old.