Particular details on the 7057 seem (or not just seem) like they are improvised: position of the power reserve indicator, inner bezel between the movement and watch case (reminds to Anfiteatro from Bulgari) and enlarged dial which covers the central barrel and its jewel in not most balanced way.
If you see the 7057 only, you can admit it's a wonderful watch. But when you compare it with the 7027, the latter wins. It's simply more traditional and more Breguet. Especially in the most traditional and most Breguet case material - yellow gold.
Therefore I go for the YG 7027, too, just replacing its brown strap with the black one.
Bojan