from my personal experience only - xr75, yz80b,c, rm125b,250 and 370, rm250x, yz465, tt500, tt600, xr200, xr500, maico490 1983
actually there are and were lots of great bikes that I had no idea how good the were or are, one that surprised the S@#$ out of me was the little t250 with t350 pots, carbs and of all things in a dam mx sidecar
but luved at the time st70, gtmx80, tl125,tl250, dt125, dt175, xl100.....................