Benchmade has models with a back lock and with a liner lock (and even with a compression lock like Nagara): which of course does not mean that any of these systems are better than Axis. So what about them: will that change your statement that Spyderco is better than BM? After all, BM can have any of the locks that Spyderco uses, while the opposite is not true!
BM could use whatever locks in whatever designs they want, but they no longer make many models that I loved like the 910 Stryker and the liner lock AFCK.
I like the knives currently offered by Spyderco more than those currently offered by Benchmade. Para2 vs 710, it's an easy decision for me. Para2 vs 910 and it becomes difficult.
If Benchmade still made the non-assisted Stryker and liner lock AFCK, my opinion would be very different. Benchmade has sacrificed, in my opinion, reliable designs in favor of pretty ones that open smoothly.
And if you believe that Endura or Delica are better suited for hard use than Griptillian: you probably should take a closer look at how small the pivot/lock area on Endura blade is... So in theory they are actually weaker
I'm way more worried about a tiny wire spring breaking than a pivot.
So what I am saying: why wouldn't just say that it is your personal preference, and that you like some Spyderco models you have more than a few BM knives that you have heard of and probably even used
...Because I saw this as more of an engineering discussion than an emotional one.
My preferences were earned by using both companies' knives for years, specifically a Benchmade 720 that I absolutely abused as a teenager for years before retiring, a 710 that I carried for a few years in the office, and a Spyderco Military that I used for 3 years before foolishly selling.
I don't like the "weak link" in the Axis lock system - the tiny wire spring that can only be replaced at the factory. I really like the simplicity of liner locks, and compression locks take the same simplicity and make it stronger (because a short piece of flat steel is less likely to bend than a longer one). You could have an Axis lock knife work fine for years, then the spring finally gives out and the knife must be sent away for weeks whereas a liner lock might give you trouble right away, but once properly adjusted should work properly for years without any unexpected issues.
Because of this, I like Spyderco's knives more. That said, if Benchmade releases something with an appealing design and a liner lock I'll be all over it.