G70 first for overall ease of selection and modification of file

Midjay second because the drums and basses have a more filling overall sound to them so it will even bring weak sounding midi files some thickness,

SD1, same sound engine as the midjay but not very fast or convient to change from style play to midi file playback.

Korg PA1xpro and Tyros 1 are tied, the new op system on Korg allows for best GM sound selection and that seems to bring up the sound quality and stops allot of the wrong sound stuff getting selected. The Tyros has a pretty good file system but I think there voice selection still gives to a weaker sounding midi file.

The rest I have not been able to test.