What generation do you feel progressed the most from its beginning to its end?

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Pajderman said:

The arguments for gen 7 has won me over at least on PS3 that was difficult to develop for so it took the generation to harness the full power. Not as large improvemts on 360 and Wii.

I would argue 360 saw enormous progress graphically; over the course of its life we went from this:

To this: