Hmm, you can say I'm an expert at all the Tekkan games. My favorite characters to use are:
1. Devil Jin
2. King
3. Steve Fox
As you know, these characters, especially Steve Fox, require swift and accurate controls with the controller. (I play with PS2). If you don't want pain on your hands and your fingers, I suggest you try holding the controller differently.
For example, instead of using your right thumb to press the OXã…â–³, Try using your index finger and your middle finger. The basic right hand position for me when I'm playing is my right index finger on the ã… button and the middle finger on the â–³ button. This looks kind of ridiculous when playing, but it is really comfortable and works best for me. :D
Yeah... I'm kind of... gay...with these things... :P