Cannot file PFPX FP and PMDG 737 with ATC

For flying default ATC I just use freeware online flight planer without Sid or star and import it to both PMDG and fsx. If you use ATC you will be vectored anyway. You can just print out some stars for approaches where ATC is bad and keep them close to your yoke and just choose the one which fits your route before approach and before hitting route discontinuity but after ATC assigned you runway. Works for me even in LOWI.

I was thinking about going pfpx but using default ATC I saw no reason to do that especially that there are more than good online solutions.

But maybe pfpx has some other features which I am not aware of so I am not saying you chose wrong