Your list is interesting, though it's difficult to figure out how you reached your conclusions.
In the last "great regulator test" (about two years ago) that actually tested all the then current regs in head-to-head competition, the only scientific, measurable test (the machine tests) ranked the Aqualung Legend and the Aqualung Titan above all others in WOB.
I'm not associated with any regulator company, and when asked I will tell folks that "Any of the modern high-performance regs are excellent" and that they should "pick the one you like" after trying them out - because that's the truth, supported by both scientific testing and user subjective testing. The only other caveat I add is that if diving extremely cold water you should make sure you get the cold water model.
But when someone comes out with a list that fails to reflect the reality of the only actual measurement of regulator performance in favor of a popularity contest I have to speak up. Leaving Aqualung off the "top-of-the-line" list is just simply inaccurate.
Rick