I tried out both a couple years ago, found them to be pretty comparable in terms of music catalog, and chose Rdio because I prefer their interface. Recently, I

I tried out both a couple years ago, found them to be pretty comparable in terms of music catalog, and chose Rdio because I prefer their interface. Recently, I've been noticing that some of the "people" I follow have stopped publishing playlists to Rdio in favor of Spotify, so I've been considering the switch. But it's a shame to have to leave Rdio's great HTML5 web interface for either Spotify's native app or flash.