I'm sorry, but out of the Tekken characters you listed, only King and maybe Nina are memorable , the rest... whereas all the other chars you mentioned from the other games are actually memorable the GP has spoken
Nina, King & Heihachi.
Those are 3 characters everyone knows. The GP knows all of them, it's not really that surprising.
And Tekken 6 sold less than SF4 sold more because of it's hundred iterations...
SF4, SSFIV, SSFIV:AE, SSFIV:AE2012, SSFIV:3DS, & now USSFIV
With all of that hype, of course it's gonna sell more than Tekken 6 which only had the Bloodlin Rebellion version which was basically just the US edition.
And why were there NO more T6 revisions? were there no interest? no hype? Why is it?
whereas all the other chars you mentioned from the other games are actually memorable 