I have now had the guitar for a while now and it is a great player. Compared the tone against my other PRSi, and also got the wife involved for her opinion on the different tones. I only played bits of Back in Black (dimed on the bridge HB) and then swapped out guitars.
The SC has a lot of mid-range push and it is the darkest of the guitars I compared it to. Pickups sound very modern to me with a bit of compression going on, but string separation is still pretty good - not the BKP-type of good, but pretty good none-the-less. Overall the wife preferred the tone from this guitar. Strings were stock PRS 10-46s.
The Bernie's 245 pickups sounded very similar to the #7s in this scenario, but there is a slight bit of "raspiness" to the tone. 57 Classics tend to be my idea of PAFs - these will never be confused with PAFs, but it does have an element that reminds me of the 57s. Strings were Pyramid Pure Nickel 8-38s.
The Standard 24 with its HFS is definitely the most compressed of the bunch. However, I enjoyed playing it in this application. I get really pleasing overdriven tones from the amp with this guitar. This guitar sounded 2nd best to the wife. Strings were Pyramid Pure Nickel 9-42s.
The Siggy Ltd. is the brightest guitar of the bunch. I enjoyed its tones the most of all of them - ironically I struggled most to get to grips with it. Staying on the bridge humbucker gets me really great overdriven tones. Strings are Dunlop 10-46s.
Having compared the guitars against each other, I would say that they all play great. My Bernie has an upgraded nut and tuners which help this guitar stay in tune as well as the Cores - it needs those upgrades though, but it can definitely hang with this crowd. I do feel that the wood on the Cores is better, but not better enough for me to sell the Bernie.
The Bernie is usually strung with 9-42s, but I needed to drop the gauge for playing Tuesday's Gone. There is just more resistance on the fretboard / frets and my fingernails pull loose from the nailbed if I bend a lot. With the Cores, I could string them with 9-42s and play without issue, but I have not yet felt a need to do so on the SC or Siggy. Upgrading the fretwire on a SE would be a €400-500 upgrade in my neck of the woods.
I do have some concern about how the finish will age. I would be in 7th heaven if it glosses up the same way as the Standard 24, but the finishes were applied differently.
With all of that being said, and with the current pricing of the Bernies and the S2 Satins, I have to revise my opinion on the best bang-for-your-buck guitar in the PRS range - IMO, the S2 Satins would now be crowned the new champs. In my eyes the Bernie (and most SEs) still holds a very solid 2nd place.