I've tried lots of them......
....And a lot of them were good. But none of them beats a good hand-cast bullet. My favorite is the Lee 255 grain RNFP. MY favorite powders, from fastest burning to slowest are: Titegroup; Unique; HS-7; AA-9. I use a lot of others when Providence lays them at my feet, but those four are the best in their own class as far as I'm concerned.