Honestly, when was the last time the weaker looking tribe didn't end up winning?
Chuay Ghan, Koror, Casaya, Aitu, Moto, Airai
I bet the average viewer on Thursday will think Red won the pick-em, because they got 5 males and an Olympic champion, while Yellow has 5 woman and a gay guy. It's when you dig beneath the surface and read the bios and Probst's comments that Yellow looks superior.

Always bet on brains, especially when combined in a trio of male leaders like Ace, Marcus, and Charlie.
Koror had Tom\Ian\Gregg, and Aitu had Yul\Ozzy\Jonathan. Yellow may be young and mactorish, but they won't rely on mere brawn.