More of my favorite PRR trains on my layout:
These Williams PennCentral F3s (I assume PC qualifies for this thread) are smooth and powerful. They are great pullers. The owner of the LHS I frequent, told me the Williams motors in the powered unit are bigger than most model train motors, and that may be a reason for its great pulling power with ease. It weighs a ton, which also probably helps:
This PRR caboose is one of my favorites. It is all metal, has good weight, and is illuminated. I think it is either very late pre-war (with normal knuckle couplers) or very early Postwar. I don't think it's ever derailed!
Next, is a PRR K-Line smoking caboose:
Unfortunately, the smoke no longer works, but it lights up, looks good, is light weight and runs well.
Finally, this classic Lionel PW Tuscan red operating box car:
I can't get enough of the PRR. the Standard of the World. Arnold