Blair vs. Serena: Fashion Face-Off! Who Looks Hotter in Gossip Girl Season 6 Feud?

Serena (Blake Lively) and Blair (Leighton Meester) are BFFs forever, but, like most frenemies, they love themselves the occasional catfight. Sigh, we'll never forget their epic field hockey battle circa Season 1. Mostly, because the idea of Serena playing sports is hilarious.

Judging from these spoilery on-set pics, fans can expect Queen B to face-off with her blonde bestie during Gossip Girl Season 6. We don't know what these two are fighting about this time (probably Dan and his Great American Novel), but their outfits look killer!

Blair's rocking an animal print fuchsia Valentino dress, paired with zebra striped Brian Atwood pumps and Alexis Bittar floral clip earrings, while Serena has on a fierce pair of Pour La Victoire Zimmer snakeskin pumps. (The designer behind her black and gold dress remains a mystery — but whoever she’s wearing, the dress is fantastic!)

Both these ladies looks ready for battle, so it's time to pit their outfits against each other! Who is decked out in the sexiest cat-fight gear: Serena or Blair?

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