Tone

It should be noted that some people contend that an overly negative worldview is actually just as unrealistic as an overly positive one. For what it’s worth, some serious research on the matter indicates that pessimism is more likely to be accurate, and optimism is more likely to be healthy; in other words, pessimists are probably right, but optimists will probably live longer.

- http://tvtropes.org/pmwiki/pmwiki.php/Main/SlidingScaleOfIdealismVersusCynicism

Should probably pick one of these too.

Edit: Wait, look:

“Earn your happy ending”

Some series don’t stick to one spot on the Sliding Scale Of Idealism Versus Cynicism; rather, they end up somewhere in the middle by drawing from both extremes of the scale. Humans may act like bastards and the world may seem like it’s half empty, but that doesn’t mean that that the worst villain is beyond redemption, or that things can’t be improved with hard work or even The Power Of Love. The forces of Good may have to go through Hell, but in the end they will Earn Their Happy Ending. May overlap with a Bittersweet Ending. (By its Golden Mean sort of nature, this is a rather Subjective Trope.)

- http://tvtropes.org/pmwiki/pmwiki.php/Main/EarnYourHappyEnding