I love everything from the SNES up to the PS2. PS3 and 360 looked like trash to me. Wii and Wii U look great if we're talking about Nintendo games. Switch looks great in general so far, I think. PS4 and Xbox One look much better than the 360 and PS3 did, but both are still mostly flavorless to me.
Each era of gaming had completely different atmospheres and charms to them up until the PS2, I think. With newer graphics getting closer and closer to photorealism, I think that's mostly over now, which is really sad to me. I loved seeing artists work with a console's strengths and quirks, but nowadays there's so much horsepower to go around that a lot of games look the same. The widespread use of engines like Unreal and Unity aren't helping matters either, obviously. A real shame, I think.