I don't think anything can touch the expressive range of the guitar.
When I got my first guitar, I played along with everything I heard that had guitar in it, like the Ramones, Nirvana and Sublime, as well as whatever hip-hop and R&B stuff was on the radio.
You know, I've never done karaoke, ever. It makes me nervous - I think it's the lack of the guitar and just a microphone.
Most of my songs start out as being very aggressive and guitar-driven.
I know that I'm capable of moving around on the guitar. I can express myself the way I want to and feel good about it. But as far as technical chops, I'm not a learned musician.