Is neither an option?

You're doing yourself a disservice in upgrade potential. Especially if you are planning on 10gbe, HBA or multiple NVME. B660 is neutered on PCIE lanes and it only has half of the DMI lanes.

Gigabyte Aorus Elite, Gaming X or Aero Z690 (or Z790) boards are excellent and very, very well suited / laid out for a home server.

If you can find a 13500 cheaper than a 14500, grab the 13500. There is no tangible performance difference in them. The 14500 got a 200mhz boost in Turbo. They are benchmarking within 1.5% of each other.