Since "Gossip Girl" and its histrionics are going to be on hiatus for another month or so, I thought we'd take a look back at one of the greatest friend pairings (or is that frenemy pairings?) on earth via the show's two biggest stars -- Blake Lively and Leighton Meester. Both ladies have great style -- I mean Blake's been chosen as the new face of Chanel, and Leighton's just gorgeous. But who would win in a true style showdown? Let's take a look after the jump!