Avast One or Avast Free Antivirus

I want to get good antivirus definitions, and protection from the web including web shield. Can someone tell me which is the best plan? Avast One or Avast Free Antivirus?

Hi,

Both contain Web Shield, and both use the same virus definitions database.
https://support.avast.com/en-ww/article/44/#idt_4120
https://support.avast.com/en-ww/article/One-FAQ/#idt_4300