IMO the Weaver N5c is the best-vale rendition of the PRR prototype offered in O scale to date:
The others:
Lionel - significantly under-width car body
Grabowski - rare - hand made brass (in USA), dimensionally correct, minimal underbody detail
Sunnyside- well made but the round roof extends too deep over the car side.
Kohs- - $$$$, Trainphone model is well done - however the non-Trainphone version has a glaring error. That model incorrectly has a trainphone equipment cabinet door on one side of the car body - a good sized detail that PRR cabin cars without trainphones didn't have. A close SPF friend cleverly has addressed the issue by simply orienting the cabin car on his railroad so the incorrect side of the car always faces away from the aisle.