NotSoFatso is awesome because of the awesomeness of the NSFe format.
Creating playlists off of NSFE's is so much better for your drive space than having MP3's of chiptune music. It's also pretty awesome with the tags, and it handles most custom chipsets rather well (VRC6,7, Famicom Disc System), so you can hear the (somewhat) better Zelda II: The Adventure of Link, Metroid, and Castlevania III: Dracula's Curse tracks (though I think most plugins can do this these days).