Lots of disqualifiers, but the single biggest one is being overweight... that one alone for me disqualifies 50%+ of the females in the US. When I've been to Europe, where obesity isn't as much of a thing, I'd say about 1 in 4 girls near my age were bangable. Over here, it's like 1 in 8. And it's sad because weight is 100% controllable. When I see a girl who is 20 something pounds overweight, it's not just physically unattractive... it's like they're advertising, "I don't respect myself enough to take care of myself. F*ck it." Such a turn off. Do not want.
