[Shin Densetsu]

For those of you who watched Kamen Rider Ryuki, specifically Kamen Rider Ryuki Episode FINAL, I think Shinji could have defeated Asakura. Remember how Dark Shinji nearly killed Asakura? He softened him up to the point where Femme ultimately landed the killing blow.

For Dark Shinji it wasn't even a struggle, he just beat his ass. Now Shinji was able to destroy Dark Shinji so I think...regular Shinji had it in him all along to take out Asakura, if pushed.

While I think Akiyama would've had an easier time taking Asakura out, to me, it was plain to see that Dark Shinji could easily take out Asakura, and by that, so could Shinji.