Fram Extra Guard and Double Guard BOTH use cardboard as a filter media. They also BOTH use a rubber anti-drainback that supposedly seals against the cardboard. However, as the cardboard breaks down the drainback loses the seal allowing dirty oil to circulate back through through your engine. The plastic by-pass valves continually break and lose funtionality. Basically these filters allow dirty oil to circulate and at the end of their short life cause much greater oil restriction, making your engine work harder, heat up more, and degrade your oil even faster. The fram filter also has the fewest pleats in the filter media, which reduces your overall filtering media surface.
A quality oil filter like M1, Wix, Napa, Motorcraft, Purolater is made with quality components that allow more free flow of oil into the engine while still outperforming the cheap oil filters in filtering efficiency. You might not notice it, but the fact is that your engine is working harder and circulating dirtier oil because fram makes a cheap product. Most of the quicklube place filters are made fram and rebranded to something else.
here's a good article that should cover just about everything.
http://minimopar.knizefamily.net/oilfilters/index.html