i've read a few extensive reports on oil filters. basically car lovers that built their own experiments for filter testing. They push a certain amount of oil through it then test for the # of unfiltered metal particles, oil flow and etc. can't remember the exact procedure, but the results were pretty obvious.
i think this may be the website. can't remember
http://minimopar.knizefamily.net/oilfilterstudy.html
i remember some guy on a forum did this then made a webpage about it..
i'm sure to some extend he may be biased (since his webpage is somewhat "mopar" related). But if you go to CT/autozone and pick up different filters, you will definitely notice a difference in the material used, packaging, and craftsmanship of each filter.
From my past experience, toyota OEM filters are about 50% more expensive than motomaster stuff, but the built quality is exceptional and just looks... like a better filter. Motormaster stuff is ok, wrapped cheap in plastic, but i've used it for years and it was fine.
the reason why I don't like FRAM, first is because I've read a quite a few complains about them. and after using it for a while I actually heard my car doing the same thing (valve ticking), on an intrepid 98. A lot of users have complained about the same thing and what's funny is that, the noise dies away after changing to a different filter. Now, this is all using Castrol GTX, so it's not a problem with the oil.
Oil filters, range from 5-10 bucks. I mean, seriously, just get a good filter. Good engine oil protects your engine, and a good filter keeps dirt away from your engine. Synthetic oil is so slippery it actually prevents your engine from properly breaking in (磨合). That's why a lot of people suggest not to use synthetics until 10000KM+.
I'm sure people drive their cars to different extends, and some people probably never take their engine above certain RPM. Truth is, I would never buy a car from someone that never rev their car beyond 3k rpm. That engine is probably full of carbon deposit. I wouldn't buy a car from someone that drives hard but never really do the proper maintenance.
Redline your car once in a while, launch it hard, (without killing yourself, your passenger, or others) is good for your engine. Blows the carbon deposit away.
When my trep crashed, insurance review for the engine was: excellent. For a 8 year car it had a better emission than most new cars, and when you open the oil cap you can see valves clean and shining.