Ethernet.
So my counterpoint on this is that in my last house I ran ethernet everywhere but really only needed 3 drops because everything started to use WiFi.
So when I moved into my current house I ran it to only 2 places where I was certain I wanted hardwired, and put WiFi APs at those drops to give good whole house coverage.
I agree honestly. I have a hard wire connection at 2 points in my home… Where my work desk is, and in the garage, which is at the complete opposite side of my house as my WiFi router. I have a could devices hardwired on the garage, including an AP, so now the entire property has WiFi. Everything else is WiFi anyway, so why bother running wire everywhere!?
One drop to each room is good enough, you can always drop a 4 port switch into a room that needs more.