Replying to Edges... help me through the bullshit: 1.7mm 2.2mm 2.5mm ??? Thickness/Width, who uses what/

Too much marketing. I'm looking at skis and put a lot of value on edge durability.

As far as I can tell, you can get:
1.7mm (width) x 1.3 mm (height)(standard edge)
2.2mm x 1.3 mm
2.2mm x 1.7 mm
2.2mm x 1.7 mm
2.5mm x 1.7 mm
2.5mm x 2.5 mm (maybe)
But manufacturers only ever list 1 dimension, if any.

Line/K2 use 'fatty base and edge' but what does that mean? 2.5x1.7 or 2.5x2.5 (they do look fat).
Atomic list their park edges as 2.2mm. Is that 2.2x1.3, 2.2x1.7 or 2.2x2.2?
Same story at armada:
They use 2.2 on the Al Dente but is that 2.2x1.3/1.7/2.2?
What about the other park skis 2.5xwhat?
Most other manufacturers don't list at all, what edges do nordica, rossi, salomon etc use?

To me edge durability is one of the two most important features to me, I'm finding it had to buy a ski without knowing what edges they have?