First I gotta say I hate when people compare Jaa to Chan, Li or The Bruce or any other Asian martial arts actor. They're different people with different styles of fighting and movie making, so stop it.
So anyway, Tony Jaa kicks your ass! It's true.
I recently saw The Protector, which I thought was pretty good. Long overdue, I think this came out a while ago. Some amazing stunts but the story was almost identical to Ong Bak... small town gets robbed, small town boy with amazing muy thai abilities fights a horde of gangsters to retrieve the stolen loot, in this case an elephant.
Here's a clip: http://youtube.com/watch?v=ds36EeXhh-Y
(Don't watch it if you don't want it spoiled)
If there was an award for the most use of unnecessary bone breaking sound effects this movie would win hands down.