I wouldn't expect to see any difference in resolution or sharpness.
The areas there might be differences in image quality is in CA and fringing in corners and also maybe vignetting.
I took this shot to look at CA and fringing. Taken on D80 - at high contrast fine detail near corners - ideal for revealing CA (ISO 200 at 10mm end of zoom).
And here is a 100% crop from the JPG:
As you can see there is some pretty nasty stuff in there. But this is at 100% and a particularly harsh example. Underwater with blue water in the corners you wouldn't see any of this.
I didn't have the 10.5mm with me (I have a 70-200 on my camera!) - so I didn't do any back to back tests. But my gut feeling is the Nikon lens is probably less prone to CA than this. But then again this was a pretty extreme example so can't be sure.