I love to play classical music... I love the focus of just sticking to notes on the page. All my awards and documented achievements on the trumpet has been through my classical training and performance. I have had great teachers prepare me for that role, particularly Eugene Blee, principle trumpeter for the Cincinnati Symphony Orchestra during the years he played with that orchestra.
Haven't got a single award bestowed upon me as a jazz musician, other than cash thrown at my feet, $20 bills tucked into may pants by a drunk bride, tips in a tip bowel... But I really LOVE jazz. Why?
I agree that classical music can express emotion and communicate feeling just as much as jazz... but with classical music, I am the instrument of the conductor. S/he tells me to play loud, I play loud, S/he tells me to play softer, I play softer, S/he tells me to pick up or slow down I do as I am told, whether or not I agree with that person's inturpretation because I am a part of a great ensemble where it is understood who is the leader and who interprets where the performance should go.
But I REALLY REALLY like to express myself. Always have... always will. For that reason, I prefer jazz. Where I am the artist, not the instrument of another musician. The jazz ensemble I choose to play in is one that shares that opinion, one that lets me take a lead role than pass it on when I am done. The music is then mine (for the moment) to communicate the way I feel it and hopefully t(probably even more importantly) the way I believe the audience is feeling on a particular night that I am playing. That fine adjustment, and the freedom and ability to make that adjustment, is what makes the jazz musical performance so enjoyable for me and the art form I would chose as my priority.