Thank you B. Goren. I looked around a bit and missed that thread. Maybe an administrator can merge the two?
As to my request for input, from the first responses here, it sounds like the order of preference might be Bix, Young, Diz, with Bix getting a slight nod over Young due to the likelihood that it will go OOP sooner. I notice the Lester Young is on back order.
I would say Lester, Dizzy, then Bix.
Unless you are really a fan of '20s jazz over modern jazz and swing, you will find that the best material with Bix is really great, but that his playing declines towards the end and the material without Bix is far less enthralling.