What's your favorite instrument to listen to....

We all must have a favorite instrument that we prefer to listen to on our systems, be it guitar, sax, piano, vocal(male or female), etc... I realised I am a piano sort of guy, be it Jazz or Classical I tend to seek out piano music. Not saying that I don't listen to other's I just have a piano bias. What's your preference? Is there a specific reason why? Is it your favorite instrument or does it sound best on your system?