Fast forward 5 years on this zombie thread.Ok... So this is an old thread just resurrected. But as I have played both the Pb's and NYXL's fairly extensively and quite recently, I think I have a pretty good handle on both.
I will agree on most of the points that Murphy states. The PB's are great strings, but there is something about the overall "gestalt" of the sounds that NYXL's produce. I have 3 five string basses and have had both sets on all three. I prefer the NYXL's on my Yamaha TRBX605 and Ibanez BTB675, but think I like the PB's a bit better on my Jazz5er. It's close on that one and I've since moved to Sunbeams on my jazz basses which I think is the right move.
If you like the PB's and just want something a little "crisper" and haven't tried the NYXL's, you really should.
I had sold my BTB675 earlier in the year, but since 2019 I had purchased Ernie Ball regular Slinkys and really liked those strings on the BTB. They have more tension than the NYXL's, but they seemed to be a better fit to that bass. I missed the 675, so replaced it with a BTB1825. It's got Aguilar pickups rather than Barts and I think I need to go back to the NYXL strings on this bass.
I think the bottom line is that strings are a major part of a recipe for each individual bass. While I had been strining my Fender Jazz 5 with DR Sunbeams, someone gave me a set of Elixirs and I really like them on that bass. Slightly less "chimey" than the Sunbeams allowing the fundamentals to come through a bit better, though I think that perhaps had I allowed the Sunbeams to age more the SB's would probably calm down a bit more. I dunno.