I mention the 787 looks better than the others which is silly, because we all know aerodynamics drives the shape of windswept surfaces. But looks are a consideration. Case in point, a professor I had claimed that Boeing started sweeping vertical tailfins on its planes because they sell better with it. I thought he was kidding at the time. Vertical tailfins do not require sweep to avoid drag divergence aerodynamically, yet they are swept because they look good.

Here is a Comet Mark 4, circa 1955. the first jet airliner. A lot has changed since then.