Hi all
Have used a number of different systems over the years and all have there good and bad points.
Jepps have used 2 different versions and both were okay. sometimes a bit fiddly until you get used to it, especially for building a new route, but as it's about 8 years ago, could have changed.
PPS is okay, but would only use it for european or short haul. Think it lacks some of the features you want for long haul ot ETOPS flights. But again an easy enough system to use, possibly a little slow, but it depends on your pc spec.
Skytrack from EDS is current system. I find this a very felxible system to use and real easy to build routes in. Auto generated routes are mostly RAD/SRS compliant with just the odd one not working. Generating routes for long haul is very quick at finding best route for winds, then just a little toying with either end to make sure its comliant. We use it in conjunction with a graphical world display, with route, sector, FIR and restricted areas overlaid, and this makes a big difference.
Just my 2 pence worth.
Regards Expat.