Please base your choice on Bela in the episode, not Sam or Dean etc. :)
I know Bela showed up in more episodes, but I'm talking about the ones in which she had more then 1 scene or a phone call ;)

RSAM is one of my favorite episodes (although a lot of people hate it). Bela and Dean were super funny on their "date" :D

Ok I love BDABR way more than either of these other episodes but from a Bela perspective, I choose Time Is On My Side....erhem, because she dies. Mwahahaha! Sorry, not a fan of Bela.

But seriously, we finally get a bit of back story on her in this epi and figure out some of her motivations for so royally screwing over the boys. Doesn't make me like her more but it does flesh out her character a bit.

Okay Bela is just awesome in this. XD

But in Time Is On My Side she officially became one of my favorite SPN characters. <3

She was pretty smart in this one.

I just love the episode and her in it! ;D

And I use favourite loosely. I really didn't like Bela at all.

In there she finaly died :-D .