Each type of Lock Ring Has Benefits
I am the fan of adjusting dies. I do not secure the lock ring to the die, I secure the die to the press with the lock ring.
That is one of the reasons why some people love the Lee lock rings with rubber o-rings for good friction fit - all of the Lee die threaded parts are adjustable without tools - makes changing the bullet seating depth, amount of crimp, or mouth flair a real dream. I really hate having to pull out my wrenches to make those same adjustments with other brands of dies.
(I know this is a little off-topic for this thread, but when we start talking about having to make adjustment changes to dies, it really is germane to the subject)
On the other hand, not being able to secure a lock ring to the die so the adjustment never changes is one of the biggest complaints others have about Lee! And I can see that too, ESPECIALLY when I am loading on a single stage press. When I put dies in a turret, the Lee rings are perfect because they never have to be moved unless you have a specific reason to change the adjustment (like caliber changes), but when I need to spin the die out to change to the next step on a single stage, I hate having to take extra care to not move that ring, and even then I still have to double check the adjustment before continuing to reload. With dies that have a fixed lock ring, it is just spin the danged thing in and start cranking with no worries.
The solution, of course, is simple. If you have Lee dies that you are regularly having to switch in a single stage, you simply buy an inexpensive set of Lyman lock rings or the Hornady LNL bushing conversion setup. Either way you still have better dies at a lower total price than other brands.