Perma-Sharp Super VS Gillette Silver Blue VS Gillette 7 0'Clock Super Stainless (Green)

[idan]

I concluded that all three types of these blades is the best for heavy beard and sensitive skin(for me at least).
who is more sharper between the three ?
who is more smoother between the three ?
who is more longevity between the three ?
what's your choice?

Perma-Sharp Super

Gillette Silver Blue

Gillette 7 0'Clock Super Stainless (Green)

 

[Bogeyman]

Silver Blue for the win. The Gillette guy on another forum said that these are simply the old discontinued 7 O'Clock Super Platinum (Blue Russian pckg.) reborn. Mind you, he was the same fella who stated that this "Chicken Little" panic over the Polsilver blade discontinuation was pure BS which was later verified. I never got along with the Perma-Sharp and the Super Stainless is superb.