Carb fuel “log” vs dual fed lines?

No benefit that I see, in fact, the setup in the second picture will sometimes interfere with things like valve covers and other engine parts. Remember, there's not an engine in that picture, so it's difficult to tell.
Ya that’s a good point with the valve covers and air cleaner. I may just roll with the fuel log. Seems easier and cheaper. Always cool to see something different tho.