I, at first, thought this would be a hard question to answer. But no matter how hard I tried to make a list of the pros and cons of every book-world I've ever stepped into there was one that constantly came into my mind.
And the strangest thing about this particular world is that it's not that much different than the one we, I, you currently inhabit but there is one significant difference. And that thing is that the world definitely going to end.
Everything Matters! by Ron Currie, Jr.* (author of a collection of short stories God is Dead, which is another world I would probably like to live in) is the book. And if you haven't read it you should. It's one of the most entertaining experiences I've had in a long time. And, yes, the world ends in this book. But the main character has some omniscient presence guiding him, and it's that voice in his head that I want.
Here's an excerpt from the book:
"You wish they understood, as you do, that there is no escape and never was, that from the moment two cells combined to become one they were doomed. You wish they understood that there is joy in this fact, greater joy and love in just this one last moment than they experienced in the entirety of their lives. Because even in this last moment there is still Everything, whole galaxies and eons, the sum total of every experience across time, shrunk to the head of a pin, theirs for the asking, right here, right now. And so anything, anything, anything is possible."
That's some heavy, dense, inner thought. If I could go around with that blasting in my head, I think I'd be better off or better equipped to deal with death, or something, I don't know. But I need it and I want it. So bad.
*If you haven't read anything by Ron Currie, Jr. you should definitely start. He has a grasp for creating worlds that are absolutely interesting and telling small, tight, character stories. Even though at times he kind of gets weird (see: boring) in the middle of his novels, the beginning and end pack enough punch to push you through to the end.