I'm sorry to say it, but it sounds as if your blowby is excessive. It shouldn't be blowing that much oil out. A little bit is normal, but if it's wet all around it then I suspect it's going past the rings. Doesn't matter what the crosshatch looks like, if it's glazed it'll be an oil burner.
I feel you've covered all other avenues, if it's still burning that much oil and you don't have a vacuum source to be sucking it up, it's gotta be coming from the one other place it can come from. A leak down won't always catch this either as the rings might be sealing at TDC or BDC but not inbetween. Reversion could account for the oil in the intake tract.
I mean if it's not coming from the valve stems, pcv valve or the intake gaskets (or some misc crack or porosity elsewhere) that pretty much points to the cylinders.
Again, all that other stuff's been verified right?