I know this isn’t as exciting as most of the questions in here, but a few of you might find this oil filter comparison helpful:
http://www.frankhunt.com/FRANK/corvette/articles/oilfilterstudy/oilfilters.html
Quote:
"What Makes A Good Filter?
Engine oil filter have one purpose in life: to filter out the particles that enter the oil so that they don’t act as abrasives when the oil recirculates."