You don't see Batman taking out guys like Bison or being able to focus ki, or breaking thru windows with his barefeet, or anything that Ryu has done in the anime. Might as well just put Batman against Terry since he's peak human to. But still both of them would kick Bruce's butt in martial arts, and with all of Bat's gadgets. Ryu devotes himself sorely to martial arts training, Batman devotes himself to cleaning up Gotham so he learned martial arts. There's a big difference in them.
Ryu's a master of shotokan karate; Bat's is a master of every form of martial art...as unbelievable as that sounds. But then again, so is the hadoken. With the ability to harness ki, as well as do the hurrican kick (tatsu-maki-sempu kyaku), I think Ryu would own. If it's fighting hand to hand and no special powers or gadgets, I think Bat's is more sneaky and deadly...probably disabling Ryu before he knows it. If Ryu connects though, Bat's would probably be out cold.
I've never read anything that stated Batman was proficient in over 126 martial art styles. That's utter BULLSHIT. Besides -- Batman has lost before to fighters such as Lady Shiva and Batgirl ( Cassandra Cain )...and they're no where near the skill and ability of Ryu. There is no way Batman could take on the World Warrior ( Ryu ) in a hand to hand fight regardless of all his " tricks " and prep time. 'Nuff Said.
It's in the book that tells about them...That's where I read it.
But Cassandra isn't in the league of Ryu. When it comes to peak human...Anime, and Comics are two different things. I mean Terry was just a normal human who devotes his life to fighting, and he beat the god of war in the anime, and he's nothing more then a normal guy like Ryu who trains all the time.