Fedora 18 "Spherical Cow" Vs Ubuntu 12.10 "Quantal Quetzal": Who is the best?

With Fedora 18 release in Jan 2013, I see increase in interest on Fedora distros in my friends circle. Almost everybody wants to know between Fedora and Ubuntu - who offers better proposition? Well, honestly, there is no straight forward, definitive answer and both command a significant number of dedicated users. As you see, both Ubuntu and Fedora gives birth to scores of derivatives and are