id say chin... skills can pay the bills all night but if you get into the shower, your gonna get wet and if it only takes a few drops then your going to be severely hindered
It depends on your other skills and attributes: e.g. Wlad has a dodgy chin but good defence, jab, power, ring iq etc to compensate. Whereas the likes of Myweather has little power at WW but great skills and speed. So its hard to say really.
