I prefer the blue one.

Brett: These wool sweaters are really nice. Which one do you like better?
Lisa: Let's see....I like the green one more.
Brett: The green one? Why?
Lisa: It looks warmer.
Brett: That's true, but I think I prefer the blue one. It's more styllish than the green one.
Lisa: Hmm. There's no price tag.
Brett: Excuse me. How much is this sweater?
Clerk: It's $139. Would you like to try it on?
Brett: Uh, no. That's OK. But thanks anyway.