You just have to try different blades and see what you like. I find that some blades work a little different, and I need to sort of adjust my technique. You can also try them in different razors. Each razor puts the blade at a certain angle and one blade might extend further out than another. So a particular blade might work better in a particular razor. By technique, I mean not only the angle that the blade makes with the face, but the angle with the grain. Some of us can use pretty much any blade in any razor, even if we have some preferences. I like to put a Derby in a comparatively mild Gillette TTO which feels a bit like scraping the hair away, though it actually leaves me less irritated than a feather, but I also like a Feather in a Merkur slant which is often harsher to my face. I can use either in a Tech, which feels very mild to me. They all feel different on my face, but I can get the same end result either way.
+1. Very true. I can't use Feathers in Super Speeds, it tears my face up. But in 3 piece razors or Merkurs, they're great.
The only blade that is on par and maybe sharper than Feather is a KAI. KAI's are as sharp but smoother. The reason that they're not as popular is their high price.