My only gripe with DuckDuckgo is their use of highlighting. The results do not need to be highlighted on hover. I know this is the current trend in webdesign, but to me that kind of highlighting just becomes a distraction.
Interesting. I did this for two reasons. 1) To give a much bigger clickable area bc some people really have a difficult time clicking on things, and over time it should shave off time for anyone once discovered you can click anywhere. 2) For keyboard shortcuts, so you know where you are. Of course, there are alternatives for #2, but I didn't find anything as good.