This was actually really hard to vote on LOL I voted season 4. But, honestly I LOVE them all. I really like the seasons when everyone knew what was going on. But, I think season 4 had the best storyline and little humor mixed in.

Season 5 is my favorite because of the black claw storyline fight scenes and the make up or face masks the used for Wesen

Thank you guys this is because I'm writhing a fan-faction and i count work out which season.

I like seasons 4, 5, and 6