Imo from most impressive to least:
Gen 4 > 5
Gen 5 > 6
Gen 6 > 7
Gen 7 > 8
Gen 3 > 4
When I was younger/getting into games. It was right around when the 3d revolution happened and everything was starting to go 3D. From Tv shows like reboot and Beats Wars, to animated films like Toy Story. I thought 3D graphics was the most amazing thing ever. So 3D games naturally looked so fucking cool to me, which is why the jump from gen 4 to 5 was so impressive to me even though the 3D back then was pretty shit. I'd say with each new gen, the jump in graphics is slightly less impressive than the previous one. With the exception being the gen 3 to 4 jump, since that was a bit before my time and I didn't really find the jump from 8 to 16 bit graphics all that impressive back then.
Gen 4 > 5
Gen 5 > 6
Gen 6 > 7
Gen 7 > 8
Gen 3 > 4
When I was younger/getting into games. It was right around when the 3d revolution happened and everything was starting to go 3D. From Tv shows like reboot and Beats Wars, to animated films like Toy Story. I thought 3D graphics was the most amazing thing ever. So 3D games naturally looked so fucking cool to me, which is why the jump from gen 4 to 5 was so impressive to me even though the 3D back then was pretty shit. I'd say with each new gen, the jump in graphics is slightly less impressive than the previous one. With the exception being the gen 3 to 4 jump, since that was a bit before my time and I didn't really find the jump from 8 to 16 bit graphics all that impressive back then.