Why are we even discussing this?
Beginning with the AACS Adopter Agreement, which came into force 1 January 2011, any blu-ray device was forced (at least in theory) to "downgrade" analogue video output. 2013 was the end for analogue video output for blu-ray devices.
Since it is 2013 now, and both consoles have blu-ray video hardware (the WiiU is not blu-ray, go figure why it has analogue out..), neither console can have analogue video out.