"Old school guns" are the ones that interest me the most. I do have some interest in ARs, AKs, and I own one Mossberg MVP in 308, but by far most of my rifles date from the 1940s and backwards.
96 and 98 Mausers, Remington M81, Savage 99, Mannlicher 1903, and Winchester 1895s all tickle me.

Last season I used old school guns to hunt all my game and filled 6 of my 7 tags. In fact all 6 kills were made over iron sights.

In fact the REAL OLD SCHOOL guns I like fire the powder with pieces of rock.