Jim,
I prefer the Korg piano, I especially like the one called octave piano the concert grand exp is also very good. Nothing wrong with the Tyros4 piano either it's almost becomes which do you like Steinway, Yamaha or Bosendofer ? It's been 2 years since I sold my Pa2xpro I can't really give an honest opinion. For whatever it's worth and a bit of a gimmick I do like the way the damper pedal mimcs an acoustic piano i.e. you actually hear what is simulated sound of the dampers being lifted off strings.
Joe, You're right on with Tyros sax being the best, I prefer it.
I think Fran pretty much summed it up. But I do prefer the trumpets on the Yamaha, Korg a close second to my ears, the vocal sounds on the T4 are much better too.