A 4:3 aspect would give 1920x1440. You have 1920x1080. Where has the bottom quarter of the screen gone? It's not there.
How can that possibly be better?
I'd take 3:2 with high enough resolution as that's the equivalent of 2x 4:3 side by side in portrait. That would be a fair trade off. I'd still prefer a 4:3 laptop though!
