I don't know how any of those brands play today with the next generation builders, but I'll add my 2 cents from my experience with all these brands from 15-20 years ago, I had a Plain Jane Joss (Dan Janes era) that I sold, I have two Schons (Evan Clark era) and a Jacoby (David Jacoby era). All with SS piloted 5/16x14 joints
Not saying that the next generation builders are not as good, just that I don't have experience with them.
Comparing the cues that I have/had, the Jacoby hit was the softest and while it's a beautiful cue, the craftsmanship was not top notch (could be just a glitch on this particular cue), it gained new life recently with a CF shaft that balances nicely the softer hit of the cue. you can get cheap extension for it but with the old screw, the new quick release joint will cost you $200, ouch....
I have an STL3 Schon that used to be my main player for years (until I got a Carmeli), I like the Schon hit and balance, it's nice and firm. The other Schon that I have is an LTD cue, a little bit heavier than the STL3 but a bit more forward balanced which makes it feel a bit lighter, Also plays nice. Craftsmanship is top notch but I do wish they had sharp points and not the rounded CNC points, The Schon R12 is still my favorite cue design and a cue I would love to own one day.
The Joss had a solid hit, I only got it in order to flip it so I didn't get to shoot with it much, I would place the stiffness between the Jacoby and the Schon. you can get cheap extensions to fit Joss cues.
If I were to buy a new cue from those 3 brands, I wouldn't get a Schon, for the simple reason that they don't offer an extension and it's not that simple to add one to it (you can use a slip-on extension but it's just not that great as a screw-on type). I've also heard mix reviews about the quality of today's Schon cues with the current builder but no first hand experience so take it with a grain of salt.
Joss looks like that they are keeping their quality as it used to be, I would love to add a Joss cue to my collection, but really haven't seen a current design that I like... but that's just me. Maybe the COM cue for what it is.
Current Jacoby also looks nice, nice woods. I don't know how the play compared to the old ones (like the one I own), probably different as they mostly use radial joints these days.
Pechauer looks very nice and I have very little experience with their cues, I've hit a few balls with a Plain Jane cue about 16-17 years ago and I remember it being firm and solid, but that particular cue felt a bit thick and chunky. personally, I don't like cues with proprietary joints that are hard to be fitted with 3rd party shafts (I'm still a Predator shafts fan boy).
So I would probably pick a Joss just because I don't have one and I have a lot of shafts that can fit the classic 5/16x14 joint.
Jacoby for the nicer woods and designs.
Get a Schon if you can find an R series cue.
Those Viking/Carmeli that were mentioned sure do look nice and priced OK, if they are built and play as good as my Carmeli player (Simple 8 points cue) then they're definitely a great choice.