Clannad, higurashi, darker than black, or sakurasou. Hard to decide. I'm sure there are others as well, those just stick out of the thousands I've seen.
Not everyone is bent on proving government conspiracy theories. Some of us work 90 hours a week, and need a break once in awhile.
Sorry for a long list : fairy tail,Pokemon,digimon,naruto,naruto-shippuden,bleach,accel-world, k-on,card fight vanguard 1st season only.