Originally Posted by
noglider
All of this is true, but having presta valves isn't a big liability, either. Most of my bikes have them, due to my inertia. I don't plan to convert, as I have no reason to do so.
None of the reasons in favor of presta or schrader is terribly compelling. It doesn't matter. The reason we ask and debate it is because we can, not because we need to.
Other than schrader is a standard use on nearly everything and presta is non-standard used only on some bikes (non-standard when looking overall and not just bicycles). In a pinch If caught without tools you can use automotive tools to fill a bike tire with schrader valves, but not presta. My choice of schrader has saved me from walking home many times. Had I had presta, I would have had no way to fill my tubes. As both will otherwise preform the same, I chose the one with more options in an emergency.