I have a pt1911 and see no reason to think of buying anything else at this time. Good, accurate,reliable. (Shrug) why would I want to replace it?
Never had a STI so no thoughts on them
The PT 1911 I have I shoot IDPA with and have over 2500 rnds through and that is just the documented reloads. I have no idea of the wwb I have shot.with zero issues! Maybe some day who knows but most handguns have issues of some kind in their usable lifespan.
But then I drive fords also No government motors for me.