Nevermind had pop hooks and a unique intoxicating quality that had a powerful effect on a lot of listeners. The record didn't have a huge budget and got big based mostly on consumer demand. Nirvana was larger than life before Cobain's death. Musical "talent" isn't some easily quantifiable attribute that's accurately measured w/ one yardstick or one persons opinion. Attempting to rank the best moments of of the Pixies, The Melvins, Soundgarden, Mudhoney, Nirvana and Alice in Chains is pretty much a clueless turd in the punchbowl exercise.