Mamas & Papas had Michelle Phillips, the baddest lady in all of '60s pop music. (I know the 5th Dimension lady has some fans here as well, so that may be disputed.) She was nasty, though, so those two things kinda blalance each other out on the non-musical side of things.

Mamas & Papas are more ingrained in my memory from home & radio (my folks had a copy of the album where they're in the bathtub), but man... we sang 'up up & away' in elementary school chorus.

Mamas & Papas also put together Monterey Pop... but their set, while better than I expected, was far from the highlight.

Long story short: I own 2 5D records, where I've only got Mamas & Papas songs on compiilations. I've put 5D songs on mixes for friends. I've nbever put a M&P song on a mix for a friend.

So... 5th Dimension by a hair. (for now)