I'm not sure if it's my pans or my stove, but I suspect it's the stove. I have electric and when things in the pot start to boil, it always starts on one side first and boils there while the other side just sits there. At that point, I rotate the pot, but it drives me nuts. The same thing happens when I cook something. My food will start burning on one side of the pan if I don't rotate it while the other side doesn't cook.
Eventually, the whole pan gets hot and then I can cook, but the uneven heating is still there. I was thinking of going out to buy a new coil one of these days and see what the problem really is.