brake pedal sticking????

You could have alot of things going on there, I had one rear brake that kept dragging on my duster, I had replaced the wheel cylinders a few years ago so I didnt think that was it, but I must of had water in my lines as that one turned out was all rusted inside, so maybe you should drain your brake fluid and replace it with clean, have you done that lately?? do you drive your car all the time or does it sit for 3 months like mine does?? I am sure someone else will chime in.....