Because it's got twice as many seasons and it's still just as amazing as it was 10 years ago. I love the Vampire Diaries but sometimes you get tired of the sappy, emotional stuff. I'm a teenage girl saying this so that's saying something.. Supernatural just has more to offer in my opinion. It's funny, scary, action packed, emotional, HOT, and so much more.
Supernaturallll , i am in love with the show since 7 years ago , i am watching it and actually i am addicted to it since i was 12 , i grew up with it ,
and after all Jared Padalecki is my celebrity crush , and i love Jensen Ackles and Misha Collins as well
I havent watched Supernatural so I have to say TVD.
It is really good and interesting. I like it especailly bc Ian Somerhalder and Paul are in it, they are both gorgeous.
I was a TVD fan.. it was all Damon :)