Didn't Vegeta believe he initially had a chance against Final Form Frieza initially? This one is kind of tricky for me. Goku is set at 3mil and he put up a MUCH better fight against Frieza than Vegeta did, and I like to put Vegeta in his final fight against Frieza on the same level at 3rd Form Frieza or above that so it's hard to place these two. I guess I'll say Frieza. I use x25 for Semi Super Saiyan, and I put M4 Goku on the same level as his main anime/manga counterpart when he fought Ginyu.
Yamcha (When he fought Reacoome on Kaio-Sama's Planet) vs. Namek Saga Goku