Soundgarden, Alice in Chains, Pearl Jam, or Nirvana?

To me it's between Pearl Jam and Nirvana with the others being an insult to them for being mentioned together.

Of the two I choose Pearl Jam as the band I prefer with Nirvana being the one I think had greater impact on music.

To me it stacks up this way:

Vocalist-Cornell (Staley and Vedder are both awesome.)

Guitarist-Cantrell (easily)

Rhythm Section- Grohl and Novoselic

Longevity-Pearl Jam

All the bands have their own advantage, so for me it all depends on the mood.......Now I'm feeling Minnesota-Soundgarden


Also, the fact that 2 huge current Rock bands (Foo Fighters, Audioslave) were created after Soundgarden and Nirvana's dismemberment shows their talent.