If you think of superiority in terms of range of use, I'd vote for the bassoon. The reason is that it is an instrument with a deeper tone and greater resonance. This makes it more versatile and gives it a wider range of functionality, in my view. The fact that it also has an easier to use mouthpiece gives it another edge on superiority. Both are reed instruments, but the oboe has no real mouthpiece. Its mouthpiece consists of two reeds fastened together. This limits the tone and resonance and limits the number of people adept at playing it as, at least to some extent, the type and size of mouthpiece an instrument has determines the fit with the musician.
I am a longtime reed player (clarinets, saxophones) who played oboe for a short while when I was younger. I much prefer the deeper tones of the bassoon, but it is also a more difficult instrument to play (and, for me, more difficult to read the music of the bass cleff). I actually prefer the sound of the English horn (cor Anglais) to the oboe and bassoon. It has a slightly deeper range than the oboe with a more mellow tone.