Where Should the headphone jack on phones be located?

I had a quick question about where people feel that the headphone jack on phones should be. First of all, I'd like to point out that I realize I could have put this into the mobile section, but chose not too, as it isn't nearly as active as other forums like this one. Should it be on the bottom of the phone, kinda like the iPhone and many iPods, or should it be on the top, like almost all of the Android phones? If you’d like, please give reasons for your choice. You can find a poll which will make your life simpler here, assuming I built it correctly. Which I probably did.