Mental Inertia, a term coined by the late Gough Thomas, British gun editor for the Shooting Times (UK) is incompatible with "best". He was also a professional engineer.

He had pointed out that panels and points, a sidelock feature, are totally useless and aesthetically discordant on a boxlock. He illustrated the point using photos of boxlocks with and without them.

Interesting to see how many "best" guns incorporate features indicative of Mental Inertia. If "best" means best workmanship and material, maybe it should also include best design and aesthetics too.