Hi,
keyboard junkie me has 3.
My favourite is my KN7. Ease of use It's audio capabilities. I like the type of styles.
Next is my 9000 pro though I must admit I've grown a lot fonder of it since some of the sequencer frustrastions have been solved for me recently, when I ended up with XG Works. It has good styles too, though my favourite ones are actually Simon William's (third party styles)especially his piano & ballad type styles.
I also ended up with a secondhand VA7. Bought it from friend who was also buying a KN7. Offered it to me at a price I couldn't refuse. Haven't had a chance to really use it yet, but I do enjoy Roland styles ( had an e86 , then, a g800 many years ago) It's not a very intuative keyboard to use. A lot of button pushing and menus) Don't like the sequencer.
best wishes
Rikki