Oriental VC that I have used has been beautiful with wonderful clean whites as does PG, though OS can be quite grey out of the fixer and clears up in the wash. I find the tonal range of OS so beautiful but contrast is lower than most papers, esp MGIV or MCC so you need meaty negs. Tones very well for density not colour change in selenium and does not go plummy like polygrade. If you want neutral prints with a good deal of toning and thus protection it is far better than polygrade as to tone PG substantially (remembering that protection is proportionate to the level of toning) you do get appreciable colour change. Both are wonderful but quite different. If you like thio toning, OS is again great as you can tone highlights and then nail the blacks with a touch of selenium whilst keeping them neutral. PG is wonderful too, but an unusual neatral cold paper in the way it changes colour like a Warm emulsion in selenium.
I have heard from some that their recent OS has been very low contrast and unimpressive. Mine is quite old. Maybe the new stuff is below par?
Tom