I don't think so. I think that the world matches the characters pretty well. Yes, the world has a more dappled look to it, while the characters have more defined lines and colors. But I think the advanced cell shading fits perfectly well within the rest of the world.
I also think you are...
I prefer the graphics of SS, but mostly because I thought TP was pretty ugly at times...I think this bit from Digital Trends is right on:
No Visual Masterpiece