No, this is a game I've looked closely at in the past. There are a lot of subtle differences between the three versions. They used some crazy frame-buffer technique to effectively "super-sample" the image on PS2. I need to refresh myself on how it works but it's effectively double-width in terms of resolution. When you see it on a CRT, it's striking just how clean it is - almost pre-rendered looking. The Xbox and GC versions, however, are more in line with standard games for those platforms.
Is it DF being towards Sony products or didnt they do any research regarding baldurs gate on the 6th gens? They just assumed things there it seems
I think the differences come down to the fact that it was engineered in a very specific way for PS2 potentially making it more difficult to transition to other platforms. It's one of the very few PS2 games that has an edge over an Xbox version for this reason. If Xbox had been the lead platform, they likely would have taken an entirely different approach to water rendering that is better suited to the Xbox. I think they did a better job porting DA to the Xbox than Konami did porting Metal Gear Solid 2, though, as it mostly retains the same look with very minor changes. It's a solid port.
I'd really love to chat with Ezra someday, though. He was lead programmer on this project and responsible for a lot of the insane work Lobotomy did on Saturn and PS1 (not to mention that N64 driving game).