I originally had the PS1 version and later traded it for the the PS2 version released (i believe) in 2007. I just recently bought a new PS3 version recently to replace the PS2.
I like the sounds and the features of the PS3 much better. Sound quality was improved and the wireless draw-bar is always plus.
Of the few (minor) issues I have of the PS2 vs the PS3 version, one is the paint quality. The PS3 seems to have a flatter black and the PS2 is a bit darker and more glossy. The lettering on the engine and tender also appear to be darker on the PS3. And finally, the PS3 seems to be missing a couple of the builders plates on the side of the boiler vs the PS2.
I have considered swapping the shells on these engines but decided against it because I am sure I can live with the minor differences.
I will post pictures in later post to show the two engines.
H1000