Wow, I had no idea that Scarsick had produced such a backlash. That's insane!
Anyway, to weigh in my two cents here, I'm not that fond of Scarsick, but there are some songs on there that are really good as well - Enter Rain is a masterpiece as it is, Flame to the Moth is amazing, Spitfall is probably the only rap-metal song that I like, Cribcaged has a great main riff, though I think it could have been significantly improved with an added guitar solo before the "Fuck the..." section which could have served as a build-up, and Kingdom of Loss is pretty sweet musically. Still, it's probably my least favourite PoS album, though I've been appreciating it a little more since listening again for the survivor. Still, America, Scarsick, Disco Queen and Mrs. Modern Mother Mary are all bottom 10 PoS songs for, so... yeah.
I also like both Road Salts. To be honest, I didn't even know about all the line-up changes when I first heard them, and I doubt I would have noticed when hearing them, as it's a very different style. I'll say though that I like the more unconventional songs on the two Road Salts a little more instead of those that straight-out blues-rocky (Sisters, Of Dust, Sleeping Under the Stars, Break Darling Break, Of Salt, To the Shoreline), with The Physics of Gridlock probably being the only exception. If the best of both albums were compiled to one album, then it would maybe even crack my PoS top 3 and would definitely be within my top 4, after Remedy Lane and Entropia and before TPE on a good day.