Shawn my learned friend, in my daily use I have trouble telling any steels apart.
I have to look for tough and abrasive stuff to cut and a few cuts of anything with any of the steels above on a given day tells me little.
In all honesty I think if you put the four steels above in unmarked identical knives so I didn’t know which was which I’d have to do a Hell of a lot of cutting with each before I’d attempt to guess which was which. I reckon I’d probably have more chance identifying between them if I were to sharpen them.
Anyhow, I only have Spyderco Maxamet in a couple of Mules and Rex 45 in a Military and I can’t say I’ve pushed either. The Mule’s geometry gives it the cutting advantage over the Military so, plucked if I know!