What do you consider to be the best made side by side shotgun ever produced in the United States? I'm partial to the Winchester Model 21 because they were built like tanks. What do you think?
What is the definition of "best made" in this discussion? Most durable? Most perfect finish? Most models? Currently available for bespoke orders? Highest value for the price? Or others?
Aesthetics depends on grade and personal taste. Handling depends on model and options to suit personal preference. Gripping area size and shape is somewhat unique to brand, but is, again, subject to personal preference.
As you can see, "best made" casts a pretty wide envelope. Objective data is scarce and subjective opinions are as plentiful as there are SXS shooters. BTW, I enjoy the M21 for what it is; long comings and short comings!!