Mm, I play piano and violin. Truth be told, I enjoy piano more, because a) it was my first instrument and b) it comes SO much easier to me, possibly because I've been playing for 10 yrs ^^ YAY.
I've played for 7 yrs in violin; and I've always found it lot more difficult- my intonation is COMPLETELY screwed cause I'm not used to listening >.< and though I reckon you can express different tone colours better on violin, it takes time.
I've always wanted to play the bass, clarinet and oboe though. Hmm, one day.