The SNES and PS2 have seen the largest leaps from launch to last graphical push.
However, Wii will easily overtake that since it wasn't pushed at all at launch making it an easy winner once it actually gets pushed.
GC is by far the least pushed post launch because one of the launch titles would still be considered impressive graphically even by todays standards.
Masschamber, I fully agree with you regarding World Driver Championship for N64. That game was simply beautiful (and pretty damn fun too).

The rEVOLution is not being televised







