Originally Posted by
Andrew R Stewart
I'm a SRAM guy. Been that way since Sedis was the "brand".
I'm on 9sp, and I too transitioned from Sedisport chains to SRAM, used them for many years. Tried a KMC chain and found it noisier and it shifted less well than the SRAMs, although just barely perceptibly so. Then I tried Shimano, it was quieter and shifted better than the KMC (but again, just barely perceptibly) and now Shimano is my preference. But they all work, and I agree with Andy that maintenance is likely more important than brand.
Side note: the Connex quick link is superior to the SRAM and KMC links. No tools/force required to open or close. It's like a magic trick.