What kind of evil, sick minded person would ever make you choose one over the rest? Next, you will have us choose family members.
But, if I had to pick just one it would be DAY. It hit me at just the right time in my life and has the darkest outlook of them all, surprisingly though it has the most positive ending of them all.... Wait, I choose DAWN. No, I choose NIGHT, without it we wouldn't have the others... I can't choose.