I'm a big fan of the Dixon for easy playing and toodling around. I need a more robust instrument for playing in a group, but the Dixon is the one I use for practice at home, and I keep one in the car for playing at red lights.
In the bag, from left to right, is an Abell, an Oz, a Copeland, an O'Riordan, a Killarney, a Busman, a Tornton and a Burke. It's about $5K in whistles. I may have a problem.