@i_like_swords: Well first things first, this is by no means a stomp. Generally speaking a lot of popular video game characters tend to have their overall strength blown out of proportion.
Secondly, Ryu is by no means some generic ninja who beats on fodder for a living. Seeing as he was born into the Hayabusa ninja clan, he has been training in the ways of ninjitsu ever since he was a child. There's also the fact he carries the blood of the Dragon Lineage, which in turn grants him easily superhuman physical stats.
In my own personal opinion... actually thinking about it now, I can't come to a clear conclusion. The Force is obviously a big advantage for Maul, but depending on the circumstances Ryu could potentially get around it with his ranged Ninpo and weaponry.
Ehh, I'll just stay neutral for now. After all, I am by no means trying to persuade you. I simply wanted to provide what Ryu was capable of.
General abilities for Ryu include low-hypersonic speeds (seeing as how he can outrun/dodge automatic gunfire), a lot of Ninpo (ninja magic basically, including elemental and energy attacks), and a vast arsenal of weapons (though to be honest his only viable weapon in this battle would be the Dragon Sword; which is essentially an indestructible magic katana at full power).
As for actual feats, he's decimated groups of heavily armed soldiers and even demons with ease, taken out helicopters with a bow 'n arrow, and even fought and defeated a possessed statue of liberty in one instance. If you want, I can pull up a video of sorts actually show casing his abilities.