AC used to have much more filter media than other lower priced filters. I can't say how it compares to the more expensive ones or even the others now. Any fool with a hacksaw and tape measure can see which has the most media. Quality of the media????
A visual inspection will reveal dome end bypasses, short filter elements, and country of manufacture. With the lack of problems from running terrible looking Frams, thelater may be the most important factor.