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They're probably fiddlier to set up. But I suspect that in a blind test, 95% of people would be unable to tell the difference from one to the other. They're basically just a metal stick with a pivot on one end and a clamp/cable stop on the other end. Anyone with enough grip strength to cause either to bend significantly either needs to take up Olympic weightlifting or reconsider their solitary lifestyle.
The TRP CX9/8.4 mini-v brakes are very nice, but rather spenny. I've never used them, but I suspect the Tektro 926AL brakes are 95% as good for 25% of the price.