Ronnie Spector has stood the test of time, and come out on top. I mean when you have Brian Wilson write a song just for you, that's really something. THX to God she got away from Phil, that demented genius.
Though I recently discovered Dusty Springfield as well.
The Andrews sisters would be my favorite girl group I guess.
The boogie woogie bugle boy of company B.
"Learn from me, if not by my precepts, at least by my example, how dangerous is the acquirement of knowledge and how much happier that man is who believes his native town to be the world, than he who aspires to become greater than his nature will allow." Frankenstein
Yep, it's really hard to top Janis Joplin. Piece of my Heart done by her is so great, all of the "covers" are milktoast by comparison.
She's very marmite to people though, my wife cannot stand her voice and many view her as just a screamer. If you like her you may want to check out Scotland's Maggie Bell and her old band "Stone The Crows", she was considered the UK's Janis.