Well, whether one icon looks better than another is largely a subjective thing; so I'm not offended ;-).
NewIcons are meant for other resolutions than "normal" WB icons. Because of that they can be too big or seem streched. Also they have a different colour layout than normal icons or MagicWB icons. You probably need more colours for your WB screen to make the NewIcons have the right colours.
I don't use the NewIcons set that comes with the installers but I use scans from the original game boxes as icon. You can download them somewhere; I forgot where but if you're interested I'm sure someone here knows!