I would say go iPhone 11 purely due to the efficiency of the A13 and larger battery, it makes for some amazing usage times! I simply cannot believe how long my 11 Pro Max survives on one charge and this seems to be the same feeling across the board with all the 11 series phones, they ALL have brilliant battery life that is a jump from the previous generation.
Let’s not get started on the Camera with Deep Fusion and Wide Angle lens, making it more versatile.
At the same time, if you value build quality, the XS is built like an 11 Pro in terms of materials used and has more of a “classy” look to it, the XS range is subtle and refined in its look, fits the classic Apple look.