Roughly:
Superb Pro
Winner Pro
Winner
Pro-Comp
Perfect
Accushift 6 and 7 speeds kind of sit outside the line-up. Some Winner (&Pro) are spaced for Accushift, and so are high end. But the bulk are kinda Perfect level quality though the internals and spline system was completely revamped.
888 has no real meaning vis-a-vis quality (it's not really a model), it just dates the freewheels to the mid 1970s at the latest.
Some one else will come along and sharpen the picture for you and maybe point out some errors in my thumbnail sketch.
Last edited by Drakonchik; 12-10-11 at 04:26 PM.