Bands And Albums.

Gotta go with Cream.

It's tough to beat Baker, Bruce, and Clapton.

3 piece as in only 3 guys or 3 piece plus a vocalist?
The Doors would be my answer if either apply,
but if it's only 3 guys... I would go with early Rush up to (including) Moving Pictures. Cream, Hendrix
Some of these bands used a fourth on-stage as filler even Rush had keyboards playing while Lee was playing bass at times.

Nirvana and Green Day

ELP. Case closed.

Electric Light Porchestra?

If you are talking about a band that is a power trio with a singer that would include Led Zepplin

Ecchh it's a hot day and my alter ego is leaking out again.. GNARL CHOMP GNASH..

My old favoritessssssss./.

http://www.youtube.com/watch?v=-DjpNgrocKo&ob=av3e

Was one of the best tunes to cover at one time..although the solo sucked then and does now.

ZZ Top, Nirvana, The Jeff Healy Band. [Thats all for now].

Groucho, Harpo and Chico

Rush

I saw them at rupp and they were incredible!

ZZ Top , Cream, Mountain (w. Felix Papalardi), Band Of Gypsies, Emerson Lake & Palmer, North Mississippi AllStars, Indiginous

These guys are one of the best. Triumph-Magic Power from the Allied Forces album is one of their best singles.

ZZ Top

is there a better 3 piece than Rush....I don't think so