One thing, they had 4 records, not 3. If you don't want to count Bleach because David Grohl (spelling?) wasn't there yet, then go ahead.
Ok, here we go. First off all of their songs are amazing, bar none. Each album has a completely different yet similar sound, thus making them diverse. Their lyrics, while occasionally nonsense, often have a deep meaning behind them. Cobain's guitar sounds are unmatched (other than Hendrix) and Novoselic and Grohl provide amazing bass and drum support, respectively. They're the kind of songs that can make you either want to go get angry and fuck shit up, or just lie in your bed and cry. If I had any complaints about them, I'd say they could've toned it down a little.
Also, Kurt Cobain was killed by the Illuminati. Just saying...
