I'm guilty have having some hipster tendencies when it comes to what I define to be good music. I respect people a lot more if they have any of the following (though, this is just a very, very condensed list because I'm lazy to find them all) in their library:
Florence + the Machine, Lana Del Rey, Wolf Gang, Passion Pit, Mumford & Sons, Imagine Dragons, Adele, Two Door Cinema Club, Bon Iver, Foster the People, Of Monsters and Men, Phoenix, Metric, Discovery, First Aid Kid, Walk the Moon, MGMT, Friendly Fires, Neon Trees, Bombay Bicycle Club, Feet Foxes, Edward Sharpe & the Magnetic Zeros, Vampire Weekend, The Tallest Man on Earth, Marina & the Diamonds, Ellie Goulding, The Naked and Famous, Miike Snow, fun., The Civil Wars, Young the Giant, Grouplove, The Lumineers, etc.
Bar Adele, who I think is just great vocally with no use of productions necessary to enhance her sound, these artists are tagged indie and other things like that on Last.fm. So most artists tagged indie on Last.fm are what I define to be good music. Of course, there are tons of artists I haven't even heard of on Last.fm who have that tag, but you know what I mean. Most of them have thought provoking lyrics and aren't meant to make you dance. Don't get me wrong, I love pop music just as much as I love them (probably more-so for some artists [like Lady Gaga]), but when I think of 'good' music, pop isn't what comes to mind.