This recipe never fails me - it's from the Betty Crocker cookbook. It is very quick to pull together, makes a nice shortbread crust and can be made with any fruit. The recipe relies on the fruit to make it sweet - there is very little sugar compared to most peach cobbler recipes I've found.
For the peaches, make them fresh if you can and frozen if not. Please, please do not use canned peaches. To peel the peaches, place them in boiling water for a few minutes, then remove the peaches and place them in cold water. The skins will slip off. If they don't peel easily, put them back in the boiling water for another minute and try again.