In my opinion it's Type-F

Because:
* It's bi-directional
* It's grounded and ungrounded plugs use the same socket
* It's already widespread
* Your fingers can't touch the live wire as you're plugging in a wire
* Low footprint

I see a lot of your comments about F being objectively same or better compared to G. The only thing I’d throw into the mix is the socket switch feels so logical, I’m really surprised it’s not more standard.

High frequency use case: I don’t need my microwave on all the time showing me the time, so I switch it off at the socket unless I’m using it

Low frequency use case: before going on holiday I switch all the electrics off at the sockets