Modern digital beats the shit out of film at the same photosensitive area, but 6x7 has 5 times the area of 35mm so it's not so clear cut. I'm not sure if a modern FF digital can actually beat 6x7 slide film in detail and resolving power, although it can certainly beat it in dynamic range and noise. Colour film is basically unusable above ISO 1600 and even at that point it's very grainy. Modern sonys can produce decent results at 12800 which is a huge difference.>medium format cannot be faithfully replicated (ergo, "beaten") because of sensor size which leads to incredible detail and shallow depth of field
Not true you just need faster lenses. Also most medium format systems don't actually have fast lenses so this isn't even that hard. The fastest mf lens I know of is the 105/2.4 for the Pentax 67 and it's roughly equivalent to 50/1.2 on 35mm which is a real lens. Most other systems use leaf shutter lenses that don't really go faster than f/2.8.
Large format is another category entirely and even 4x5 will leave any FF digital in the dirt as far as gradation and detail go.