Vegeta lost.
Objectives: get dragon balls, kill Goku, destroy Earth, kill Goku and friends, spread the gospel about the brilliant scientist
Achieved 1 out of 5.
Goku won.
Objectives: save remaining friends, save Earth from destruction, defeat Vegeta, make Vegeta leave, make Yajirobe do something useful.
Achieved 4 out of 5.
But one vs one, Vegeta won. Transforming isn't cheating. If it's Goku or Gohan transforming you can say it's luck because they have no control, but with Vegeta it's all his own power (with the external stimulant of the blutz waves, but not more external than Freeza killing Krillin or the whole world/asteroid storm making Vegeta feel like a bitch).