It's super competitive everywhere with more musicians then gigs. If I wanted be a recording/session guy, I'd go to Nasville, or maybe LA. If I wear a jazzer, it would be NYC. OMB types would probably do best in a resort area with lots of seniors, I'm not sure exactly where, but probably outside of the states. It all comes down to playing/singing your ass off and having some contacts and amazing people/social skills.