SW is not great. Everything Performance Center is junk, they add a rail or a different color barrel and charge $700 more. It is pure marketing. There is nothing "performance" in their Performance Center product. They don't even polish parts.
But, the difference is you can buy a SW revolver and replace every part, you can also find several gunsmiths or knowledgeable people that will work on them.
Good luck doing that with Taurus.
If Taurus sold a kit gun, like SW does, and there was a lot of after market support, I would say "buy the $300-500 gun, replace $250 worth if parts, do some polishing and you will have a great shooter". The problem is Taurus sells a kit gun with sh*t support. So you are stuck with a mediocre product. You might be able to polish it a bit and maybe change a spring.
As far as Ruger - their revolver triggers are horrible, even the Super GP100 that is supposed to be a competiton revolver has a horrible trigger (like pure sh*t trigger). The only trigger worst than a Ruger is a Taurus.