I have no idea who any of those girls are (I don't watch very much television), but here is my take:
1. The first girl pictured looks damn attractive. I'd give her an easy 8, perhaps a 9.
2. The second girl is fairly average. I'll give her a 6.
3. The third girl is right in the middle, looks wise, but she gives off a nice vibe, like she's happy to be here. That makes her my #1 choice.