The forbidding design of the Palais Vieux, reflecting the pious austerity of Benedict XII, contrasts with successor Clement VI's more decorative Palais Nouveau.
The Palais Nouveau design is loved more than the Palais Vieux design. 
mnli hypothesis: The Palais Nouveau design is loved more than the Palais Vieux design.  premise: The forbidding design of the Palais Vieux, reflecting the pious austerity of Benedict XII, contrasts with successor Clement VI's more decorative Palais Nouveau.