I am certain this is going to be moved... I have Ubuntu Gnome and Arch with Gnome installed, they both have their good points. Ubuntu Gnome has the advantage of being very easy to maintain. Arch takes some work to maintain because of it's rolling release nature. Arch always has the current stable version of Gnome where Ubuntu Gnome does not.
On the other hand, I never have to worry about problems with my extensions on Ubuntu Gnome and updates are not likely to break anything. Both distros have something good to offer depending on what you are looking for.