Good comments, Rok. Agree with your assessment of the Canadian Brass recording; great brass players, but don't have the necessary feel and looseness for that music. The Oscar Brown Jr. recording is definitely a classic; I've always wondered why his recordings don't get more attention.
Brackeen does indeed play great piano; although I have always been mixed about her playing. To me, she is, in some ways, one of the most beautiful pianists, but with a not completely convincing swing feel. This live recording is a perfect example of what I mean. She plays in a gorgeous rhapsodic style and uses the keyboard almost like an orchestra with her use of dense harmonies and textures with great flow and shape, but at around 4:30 when she goes into a double time swing feel things fall apart for me; too stiff and rushed. Still, beautiful playing.
http://m.youtube.com/watch?v=n3mTrBHRQPA