The surprising thing here is that Google Home doesn't yet work with G Suite accounts, nor does it even let you add events to your Google Calendar. That gives the Echo a distinct advantage over Google Home, at least in terms of how it manages your daily info. Home can read out your daily agenda, so it's not a complete bust, but being able to add items to your calendar feels like the kind of that that should have been in there on day one.
The good news is that Google's been adding features to Home pretty rapidly -- earlier today, the company released an update that lets multiple users add their own accounts to Home so they could get personalized daily agendas or commuting details. Hopefully Google will add more robust calendar features soon, but in the meantime, the Echo maintains a leg up on Home in that regard.