One or two every now and then wouldn't be harmful. It's not like we get any other amazing comic related battles going on currently, or even recently.
To the fight at hand, I don't see Ryoga winning. That rock-shattering he has doesn't work on people and he's no where near as durable or as strong as Luke, even if he is much more skilled and faster.
Gender: Male Location: Hiding from The Doctor, shhhh.....
Good point. Plus, I just read something on wiki that gave me pause. Ryoga is possibly a class 100.........
Edit: He appears to be physically stronger than, or at the very least as strong as Ranma. They've never outright competed in this area, but during the skating competition Ryoga moved and then hurled two enormous blocks of ice (with an estimated total weight of a few hundred metric tons) around 10-20 metres.
__________________ Wanted: New sig. Something crazy, zany, and slightly evil. Will give sig credit to whoever's I sport.