The Hills: A Halloween Fashion Face-Off!

Friday night was Halloween and The Hills' Audrina Patridge, Lauren Conrad and Lauren Bosworth (a.k.a. Lo) all got decked out in various costumes to celebrate.

You have to give Audrina Patridge credit (that's the only sexy peacock we've ever seen), but LC and Lo also rocked some interesting, semi-elaborate getups.

Click to enlarge for a better look. Then tell us ...

Which star of The Hills has the best costume?