Having visited the Bernardelli factory when it was at it peak, and having dismantled both Bernardelli and W&B doubles my vote goes to the Bernardelli.

Both guns have dovetailed lump barrels. Both are based on the Anson-Deeley prototype. But.... the Bernardelli has a bolted stock which makes it owner serviceable. It passed proof at 1200 bar, it has chromed lined barrels, it has a replaceable cross (hinge) pin which makes action tightening easier. The Webley has a cross pin machined from the solid. It also has a through the grip screwed stock with all its attendant risks.

As for handling, find an Elio in 16 gasuge. It will be a revelation!