Well thank you captain obvious.
I've been using both gnome and cinnamon alternatively last year, I think that cinnamon ends up being the winner . I like a lot of ideas of gnome 3, but it's shell is broken in many ways. Window management is broken, start any full screen app in wine and you will see that, windows that dissapear. Focus follows mouse is unusable (thanks to that strange menu from the application name thing that dissapears if you stumble with another window), on my system the shell starts eating up ram until I restart it I don't know why! Cinnamon doesn't do that! I've had more than 72 hours logged in with cinnamon and no memory increases. Drag to unlock not only is unintuitive (it doesn't say anywhere that you have to drag the thing) but it causes graphical glitches on my Nvidia 520 gt card (not even a weird/new model).
Also I don't know why it doesn't let you configure your font without resorting to the ugly mess that is Gnome Tweak Tool!, seriously we HAD that feature in gnome2, in fact we had a nice theme selector that still kicks ass as it was simple and yet quite nice.
The good side of gnome is that it has an interesting workflow, and it's extensions make up for some interesting concepts, and most of them work pretty well.
Cinnamon kicks gnome's ass in the following aspects: better window management (edge snapping rocks), a proper CONFIGURATION PANEL, yeah you can change themes, download new themes add widgets, configure the window manager, configure your font settings, install WM extensions, install desktop widgets, configure hot corners. Also you can edit the panel dragging and dropping around, instead of having to install a third party extension every time. No perceivable memory leaks.
The new nautilus looks good, but it's useless and Nemo kicks it's ass around in every aspect, it's easier to use, it let's you see your currently used space and resize icons in the statusbar (why in god's name they removed the statusbar???), it lets you change the treeview with a well placed button, and most nautilus extensions work with Nemo anyway.