For my all-time favorite, I'm going to have to go with Mothership Connection by Parliament. Clinton and co really hit their stride with this one. Conceptually, I don't know if it's as quite awesome as the heights they would go on to reach with Funkentelechy, but it was here that they introduced Star Child and other concepts, besides of which musically it's amongst the strongest and funkiest stuff they did. Bootsy's expert bass-popping is all over it, and Maceo and Fred Wesley's horn section keep it tight and funky throughout. Vocal-wise, Clinton is in fine form spitting out his intergalactic spoken raps and punchlines, and Glen Goins, arguably the best singer in the vast P-Funk army, shines on the titular track as well as others including the often-overlooked but nonetheless excellent Unfunky UFO. The guitars are funky, the drums are funky, Bernie Worrell keeps it real on tracks like Supergroovalisticprosifunkstication, and Clinton's brings his best wacky chants on Night of the Thumpasorus Peoples.