i am totally particular about my bindings and how they fit, etc. tried about 6 pairs before finally buying my most favorite bindings ever.....
liquid force alphas
they are guys bindings in xs or small (can't remember) but they were the only ones that didn't totally dig into my calf, make my foot fall asleep OR fall off when i crashed.
i LOVE them!
and instead of buying new ones just by our rec's, ask your local boardshop if you can just demo a few pairs; it's the best way to go if you're about to spend a few hundred bux;)