My home has no POTS and has a choice of either FTTP (fiber to the premises) or cable.
When we first moved in, I choose fiber... because it's fiber! It must be awesome.
AT&T fiber maxes out at 18Mbps and that it at a crazy unaffordable rate. Cheaper service from Comcast is 120Mbps.
It's not the physical medium that matters, it is the service and cost.
I'd do LTE if that had the best bang/buck.