My favorite genre... Probably shoujo. I like a lot though honestly. Though I tend to avoid anything with a lot of horror/gruesome elements.

One of my favorites is Natsume's Book of Friends. It makes me cry regularly.
I also liked Phi Brain: Kami no Puzzle (despite it being kinda scary at times)... and am really enjoying You and I Are Total Opposites, amongst a number of others this season. :3

I'd try guessing the creator's favorite but... I suck at guessing games.