Band with highest success/talent ratio?

Welp (i think this came up before), the hinge might be how "talent" is defined... could be:

-Ability to execute very complex and difficult stuff on an instrument, (making Yngwie, Dream Theater, EVH, Rush and a few others mentioned ineligible as targets for this thread).

-Ability to transport or emotionally impact an audience, (this gets a lot of otherwise pretty mediocre artists who were named off the hook ...R&R hall of fame (hack ... gag) provides many examples).

-Someone who has advanced an art form or expanded the vocabulary of an instrument, (probably puts Miles Davis, Beatles and EVH off limits).

Achilles,
I'm with you on all three.

Soundgasm,
I'm with you. Garcia's Dead, and I'm Grateful.

hey folks we're really looking for con-ten-ders on the scale from 1 to 10.
They're John Bon Jovi and Paul Simon. I'll give 'em 10/small fraction of one.

Sure, I'm sick to death of Elton John, too. But no talent? That's just foolish. Remember, he wasn't always a 60-something noodling around with broadway shows.

And I continue to be surprised at the sheer number of people who mentioned the Grateful Dead. Sure, their style doesn't appeal to everyone (whose does?), but they were certainly the best in the style they chose to work in.