This is a voluminous topic, for which this is just a quick summary.
Points for Honors
It is well known that Aces and Kings (A=4 and K=3) are undervalued by the 4-3-2-1 count. Also, Queens and Jacks (Q=2 J=1) are overvalued. Probably 6=4=2=1 would be more accurate, but nobody wants to overhaul things that much.
Some teachers like adding 1/2's and s