current tio 5- from smoothest to sharpest
Derby extra
Derby Premium
Astra SP
Nacet
Feather
but I just got some Voskhods to try, they are reputed to be smoother than Derbys and sharper so the list may change shortly
I use vintage blades exclusively but in case you want to know
Personna 74
Wilkinson Light Brigades
Gillette Platinum Plus
Gillette Spoiler
Personna Super Stainless