S1 has more graphical effects than 3. For exemple, the screens reflection on the ground do not appear in 3. It's a shame cuz it adds a lot of realism. In 3, the trees can't be painted, while in 1 you can even see the ink drain. In 2 & 3, no smoke comes out the guns unlike 1.
because they chose larger details over smaller ones, the comparison between maps in 1 and their return in 2 is crazy
I always liked more how Splatoon on Wii U lookee compared to Switch. Sure, a lot of shadows are rendered in real time on Switch and are baked on Wii U, but overall, I like more the Wii U approach. Flounders Heighs not being in the evening on 3 is a crime!