The part I love about Soundhound is that I can basically hum something to it and expect a good result within a few attempts. Shazam can't do anything like that.

Yeah I love the soundhound app as well. My wife is a professional singer, so often times she can sing or whistle a song and soundhound will pick it right up.

Agreed. Shazam has failed for me too often where Soundhound has returned the result, that the only reason I use Shazam anymore is out of curiosity after Soundhound, to see if it can also find the track.

Just as another data point, I've had the opposite experience. SoundHound doesn't work most of the time for me. My tastes are eclectic though.