Both brands will pass the same light as long as the polishing and alignment are decent, so I’d look more at build feel and how cleanly the connectors latch. I’ve had gear from https://hkcablemachine.com/fiber-optic-cable-production-line/ in my workshop, and it made me appreciate how much consistent manufacturing matters for connectors. Between your two picks, I'd just choose the one with better housing tolerances and cleaner dust caps.