Austin Scarlett, Michael Costello, Mondo Guerra Austin Scarlett, Michael Costello, Mondo Guerra

After being given a second chance at greatness, which Project Runway All Stars designer will take home the crown?

Thirteen lucky designers returned to the runway, and after facing challenges ranging from Muppet couture to seasonal sportswear, only three remain to battle it out in the finale Thursday (9/8c, Lifetime): Austin Scarlett, Michael Costello and Mondo Guerra. At stake is the coveted title, the chance to sell their collection in select Neiman Marcus stores and on, a fashion spread in Marie Claire magazine, a one-year position as guest editor of the magazine, Brother sewing equipment, $100,000 in technology and office supplies from HP and Intel and $100,000 cash.

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Here's a breakdown of the finalists:

Austin Scarlett, Season 1, 4th Place - He's fallen in the Bottom 2 only once and has won two challenges: A Night at the Opera and When I Get My Dress in Lights. Both wins were for ballgowns — no surprise since big and gorgeous are in his wheelhouse. But throughout the season he seemed to struggle occasionally with designs that read as old and frumpy.

Michael Costello, Season 8, 4th Place - He's been in the Bottom 2 three times and has won twice for the Miss Piggy red carpet challenge and the gelato-inspired design challenge. He's speedy with a needle, but has been wildly inconsistent and hasn't deliver outside of his draped gown comfort zone. Nevertheless, he's more even-tempered than his competitors, and that could be a benefit in the stressful finale.

Mondo Guerra, Season 8, Runner-up - He's the odds-on favorite because of his consistent performance in his original season and during All Stars, never falling into the Bottom 2 in either season. Going into the finale, he has four wins under his color-blocked belt: Clothes Off Your Back, Puttin' on the Glitz, O! Say, Can You Sew? and Let's Get Down to Business challenges. His strengths are mixing patterns and colors and sticking to his guns, but will stress undermine him in the end?

Vote for who you think should win in our poll below: