Picked up a Wii to try some of these old nintendo games but not sure what to submit my runs as. Is it only not emulation if its on the original console? thanks.

Original disc on a Wii is not considered emulation. But if you are using software like Nintendont or USB Loading to play the games on original hardware, this is usually considered emulation. To be sure, ask in the game forum or contact the moderators of the game you want to run.

Many games also allow emulation but ban USB Loading/Nintendont since they have significantly better loading times. I'm yet to see a board where those are allowed.

I would say no. The Wii is basically just a Gamecube with motion controls, and the games run natively.