I plugged in my spare hard drive this morning and decided to give Ubuntu Gnome 14.04 x64 a try. Everything seems to be working well, Gnome Shell is heavier than Xfce but lighter than Unity on the computer I am trying it on. I have not tried Gnome Shell since 3.4 in Fedora, things seem much nicer since then! I like the way compositing and effects are, just enough bling without overdoing it.
The interface looks clean and streamlined and the default applications are mostly what I use everyday except for evolution. Evolution seems nice and it seems pretty feature rich. I am going to run Ubuntu Gnome for a while and give it a fair chance before deciding what I want to stay with on my desktop. I liked the way Xubuntu ran on this hardware but I came across a couple of things I did not like.
I have read quite a few posts where people are saying that once you get used to the work flow with Gnome Shell it is really nice, so I am going see if that holds true for me. I figure that I have nothing to loose and it is fun trying something different.