You do realize that Gouken is Gouki's(Akuma's) brother, whose stronger than him in general? Both of those guys would be incredible threats to Marvel Earth, while Bane isn't even a city level threat.
Gouki is the guy who ripped a submarine apart, split ayers rock in half, etc....
Gender: Male Location: Kicking pigs out of the screen.
Hmm... Gouken is stronger in some ways. It is true his brother "killed" him but it is assumed it was because he didn't want to kill his brother so he didn't go all of the way. Now Akuma did kill his master too, and Bison was the original killer of Gouken before the early retcon and Akuma's appearance. I'd love to see what Gouken is really capable of. I had this sf discussion about 5 years ago, they were massively underrated on here then overall.
Those two would not be a major threat to Marvel Earth so long as the superheroes are there. Iron Man should be enough for them. Any telepath should be able as well.