Amber Tamblyn vs. Kate Mara Who'd You Rather?

11/4/2010 3:00 PM PDT

Amber Tamblyn vs. Kate Mara: Who'd You Rather?

Dressed in different shades of green, "127 Hours" starlets Amber Tamblyn, 27, and Kate Mara, 27, both attended the film's Beverly Hills premiere last night.


Question is ...