a couple of the stores I've looked at have told me the reason they stock only a few Jacksons is because the quality isn't the same as PRS or Ibanez.
They must have been talking about the cheaper Jacksons which are made in korea (although at one time I think they were made in India). They are indeed poorly made vile things that should never have "Jackson" on the headstock.
However, the SL3 is made in Japan & IMHO wipes the floor with just about anything else in that price range. The MIJ Jacksons are fantasic quality, especially for the price.
That leaves the SL3. Spec wise it's broadly similar to the PRS and is a very similar price. It has the passive pickups that I prefer as I suspect they'll offer more variety in tone but on the other hand I generally prefer the richer tone you get from mahogany and that's the PRS. Any other thoughts from anyone?
Bear in mind that the SL3 is neck-thru body, so it has a different tone than an alder/maple bolt-on (generally speaking, it's mostly noticeable in more low end & sustain). I certainly don't find mine to be overly bright or lacking in warmth, especially with a Holy Diver in the bridge pickup (trust me, it's a worthwhile upgrade over the stock Duncan JB)
Having thought a bit more about the SL3 versus the PRS (I've never played one, just looked up the specs) here are a few other things to consider over my blind loyalty to Jackson :)
Can you live without fretboard inlays? (I was surprised how hard I found it to adjust to only side dot markers, so I'd choose the SL3 for this reason alone)
HSS or HH?
CASE: According to PRS the SE comes with a gigbag only. The SL3 didn't used to come with a case either, although I found at least
one place that now offers it
with a case.
The Active v Passive pickup is only a factor for me in that one is going to be more expensive to BKP than the other :)