For me it depends entirely on the qualities of the individual watch and/or movement involved. Mechanical watches, new and vintage, range from cheap pin pallet escapements, through more mass market offerings all the way up to Patek and fully handmade from scratch inhouse pieces. These days quartz tends to be with a few exceptions all of similar quality. It was not always so. An early 1970's Beta 21 quartz movement was far more "handmade" than your average Swatch group ETA based automatic of today(and many times more expensive when new) and with a smoother seconds hand than any AP could manage. The 90's resurgence of the Swiss mechanical watch as a luxury item and the economies of scale and modern manufacturing of same means that they're mostly like any other mass market item rattled off production lines in their many thousands. Soul gets added later…
Watch collecting is a broad church and we collect and admire what we personally like, whether that be handwind, automatic, tuning fork or quartz. They can all have soul for the individual and long may that continue.