Rhapsody in Blue - Which one?

I agree with Kchahoc that this work can be enjoyed in many different interpretatations, and it would be a shame not to hear several. But, of the many different performances I've acquired over the years the two that get replayed most frequently, due to their superb energy, pacing and sheer fun, are:

Previn/London Symphony Orcehstra on EMI -- a delightful and characterful performance with excellent piano work by Previn and clarinet by Peyer.

Andrew Litton/Royal Philarmonia Orchestra on MCA

These recordings aptly demonstrate that it doesn't take an American orchestra to make this music work.

This was one of my favorite works until United Airlines ruined it for me. You can't avoid it whenever you go to any airport.
Having said this, I agree with above comments, there are many scoring versions of this that owning one does not do it full justice. There are full orchestral versions and the Whiteman's versions. One of my favorite is with Abbey Simon and Leonard Slatkin on VOX. They use a modified Whiteman's version, I believe. You can feel the atmosphere of the era. It simply transports me everytime.

Yeah, I like the old Bernstein as well. If memory serves, I believe he is the pianist as well as the conductor..

If you are really a quadophile, try the Litton on Delos.