Nice comparison guys, I love the mouseover method you use, its the best way to compare the settings!
I really dont see much of a difference between Ultra High and High in DX9.... the shadows are a bit denser and there is slightly more objects in the distance, but the difference is so small that I wouldnt be bothered going down to Very High from Ultra High if it got below 30fps.
However, going from Very High to High is a HUGE difference, there seems to be no dynamic lighting in High... would never touch it!
The widescreen vs normal aspect ratio is a joke, Ubisoft did a bloody cheap job on this console port... very dissapointed.
For anyone who wants to fix the widescreen crap there is a temporary fix here:
www.widescreengamingforum...It will give you true 1680x1050 not the cut of version which ubisoft decided to spit out.... it makes many PC gamers very sick while playing.... without the patch on widescreen monitors.