Taurus and Charter have had their ups and downs with regards to consistency. I have never owned either, but have been tempted by several Charters.
While theTaurus and Rossi have always been basically S&W clones, the Charter is a different design that has no side plate and a different type of crane, both of which are somewhat less refined but with a potential to be rugged enough if consistent QC is implemented.
Rugers, at least from the 70’s on, have always seemed more rugged than Smiths, if slightly less refined- not in finish but action smoothness. I have owned several Rugers including an SP101 which I foolishly sold. It felt gritty compared to a Smith, but that thing was a tank.
Today, I think Smith, Colt, and Ruger are equal in overall quality. I think Taurus and Charter are a step below, and more or less equal depending on when they were made. I think the Taurus is by design more refined, but ruggedness and reliability could be equal depending on QC. A lot of users swear by them though.