Linux is standardized, because it is the kernel used by all Linux based distributions.
Now the concept of a universal Linux distribution has been recommended by many, but in my opinion it is a very stupid idea. The primary reason for the advanced growth in Linux based distributions is the freedom of choice, which also brings with it many competing free applications. Because these applications are competing for new users they are always trying to push the envelope in functionality and security, which can't be said for unified proprietary products.
To unify all similar projects would halt that ambition and the actions, effectively making Linux distros static, which would slow the development and effectively make Linux no better than windows when it comes to advancements.
N.D. is correct in his/her recommendation to use Ubuntu, I always recommend it to new users because it is what I would consider the most user friendly. If you want some single effort for the non-technical user base then put your support behind the distro that you feel shows the greatest potential.
Personally I feel that the mass quantity of options is a great thing, it allows the administrators to choose various distros to use on their networks based upon specific needs, the unified kernel and chosen apps will be standard between all systems which means that even though they are all different, they can all communicate seamlessly (try doing that with a MAC and windows network).
