I am moving from an iPhone 7 Plus to the iPhone X. I think there is some confusion as to how much screen real estate the iPhone X will have compared to the Plus models - and this makes sense because it's complicated. Although the display is larger on the X, the additions of the notch and the bar at the bottom of the screen (as well as how they affect the UI of apps) means that, in the end, both models have a similar amount of real estate. I'm okay with giving up a slight amount of real estate to the notch and bar when the phone will fit better in my hands. I've been getting the Plus models ever since they went on sale for a few reasons, in this order - substantially better battery life, larger screen, and the dual cameras (on the last model). I was thinking of downgrading back to the regular-size model with the 7, mostly because I missed having a phone that fit better in one hand, but then Apple debuted the dual cameras, which pushed me back toward the Plus model.
I realize that the iPhone X will have less battery life than the iPhone 8 Plus, but getting about as much screen in a package that fits much better in my hand is something I'm really looking forward to. The addition of the extra features (Face ID, edge-to-edge OLED screen, and better front cameras) in the iPhone X is just the cherry on top. I am excited to get the X!