Here are two of my favorite jazz musicians working today. First rate pianist and visionary conceptualist Uri Caine is one of the more interesting musicians around, and not just because he's from Philly. His projects employ jazz, classical, and electronic(a) elements. He's worked with many great musicians such as the awesome Ralph Peterson Jr., Dave Douglas, Don Byron etc etc. He has also employed the stylings of DJ Olive (of We) and Recloose. Check his stuff out, NOW!
Also one of my all-time favorites is composer/sax player Tim Berne. He is running his own label, Screwgun records. He is a fierce improviser and excellent composer. He studied with the late great Julius Hemphill (BAG), and this is reflected in his compositional style.
Of course there's too much good music in the world and I could name at least another 100 favorite musicians, but I'll save them for later. These guys just popped into my head and I thought I should share. They both produce top quality shit so go buy their stuff so they can eat. Tim Berne's CDs come with recipes too, so you got food and music with him.