I think Ubuntu has the best desktop deployment.
Why you think so? As I use every day many Linux distributions with GNOME desktop environment and I do not find anything from Ubuntu what would make its desktop default configurations better than any other distribution using GNOME.
The only big difference is wallpaper, style and icons. But those are the things what makes any of the distributions unique as it is marketing and branding.
I love ubuntu because of it's african name and easiness.