If starting fresh, Canon or Nikon? Which has the best lineup in lenses, bodies and lighting?

Hello,

First off, I am not trying to start a flame topic nor an open discussion between fanboys and such...

I was just wondering... 
If someone has 0 investment in lenses and bodies and is starting fresh at a DSLR setup today, not regarding which particular model to purchase, what system would be a better commitment?

In regard to lens lineups, prices, available bodies, flashes and lighting, accessories and general tech, like sensors, metering and AF modules...

Given the current state of both brands and the predictions for the future, what system could be a better medium to long turn commitment and why?

Cheers!