SGC vs. PSA vs. BVG for card grading

[swarmee]

I guess people have forgotten the SGC damaged cards problems last year where their pretty black gaskets were coming apart and cards were getting stuck between them, damaging the surface?

And BVG stopped providing the subgrades, but are more forgiving on OC and MC and MK and OF than getting the PSA code added.

I like PSA, but I'm not sure they're the right answer for most often grading the card at the most accurate levels.

I guess if money was no object, I would damage brand new (MT) cards in the same ways and submit them to each service to run a test on their services. If every one denotes the card with a pinhole as a 1, and a light scratch as a 7, and a heavy crease as a 2, and a surface wrinkle as a 5, and a light corner ding as an 8/8.5, then it wouldn't really matter.

I guess if I didn't care whether or not the cards graded a certain way or wanted them to appraise higher, why get them graded at all?