Which are better and cheaper to buy: homes in foreclosure or home for short sale?

So we are looking for a home but like many people, do not want a back breaking mortgage. I've found many homes for short sale and that are in foreclosure here in Georgia. I have not yet been able to determine which homes are better and cheaper to buy. Some sites list all of the homes with photos and detailed information. Some sites only list one photo of the outside of the house with very basic information and for the frustrating ads, some sites list a satellite photo of the house with the general statement that "this home is in foreclosure". blah blah blah. IDEAS please.