USB-C vs HDMI cables: Which should you be using?

USB-C has emerged as a viable alternative to traditional HDMI for connecting a computer to a display, but which of the two cables should you use?
Ars Technica

Connecting a desktop PC to USB-C monitor with HDMI for video - will this work?

I have a Dell U2720Q monitor that accepts HDMI 2.0, DisplayPort 1.4 and USB-C. I use USB-C because the monitor acts as a hub for a range of peripherals (keyboard, mouse, webcam, speakers, etc.etc) and ...

Which USB Port Should You Use For Your Mouse And Keyboard?

Save your best ports for your most demanding devices.
Ars Technica

Ethernet over HDMI - did any computers use it for network connection?

Some (many?) HDMI cables can also carry Ethernet over HDMI. The main use seems to be to provide internet connection to a smart TV from a cable modem box. Currently I have an ethernet-USB adaptor ...