Re: Which PRS to buy? Differences between models?
In my opinion, you really can't go wrong with a PRS. Keep in mind, this is my opnion and my experience and results may vary.
I went through a lot of guitars whe nI got back into playing. Some included Hamers, Carvins, Schecters, Deans, and I finally settled on Gibson and PRS for my go-to brands and that is because I have yet to find anything I like as much as my 2003 LP Standard and 2001 McCarty. The Mccarty as well as the CU22 are dynamite playing and sounding guitars and this is in stock form! I installed Dragon IIs in my McCarty and she is an amazing sounding instrument now! Great punch, clarity, warmth, clean to heavy. I couldn't be happier. I love the wide fat neck although it took about a day or two of adjustment - but now feels great. I have no problem flying on this thing. I was never into thin necks so I always go for beef. For this reason I prefer the ibson beefier neck designs over something like the Classic or 60s style neck. Same with PRS as I do not feel comfortable on the wide/thin - whether or not you hear a tonal difference in a band situation is hard to say, but I like the feel.
Mabye if I want a shredder, I'll buy an LP Classic or PRS with a wide/thin.
In the mean time, I am thinking of buying a PRS Swamp Ash Special for variety. The older I get, the more I realize I want my guitars to do different things. I already have a Dean Evo Premium which feels and plays similar to an LP but with a slimmer neck (Shredder?)

. I also have the LP Standard with Burstbucker Pros -this guitar plays amazingly well and one of the fastest necks I have. I am much more comfortable with the upper fret access now that i have had it a year. The pickups in an LP can't be too hot forme because LPs have so much natural punch and compression that more vintage and open pickups seem to serve them well. I can nail clean to classic rock to slamming metal with this one.
My McCarty which is a joy as well, is a bit thinner in the low mids and bass next to the LP but sound great in its own way - very big sounding guitar with a refined and smooth tone. I really love PRS pickups. The Dragon IIs put this guitar over the top!
I think my next buy will be a PRS Swamp Ash Special for variety - Swamp Ash body thinner than the Mccarty, more vintage Mccarty pickups, bolt on maple neck, and termola!
I was really leaning toward another Mccarty, a Custom 22, or another LP Standard as I LOVE Les Pauls. I am sure I will buy another LP eventually, but it may have to wait in the face of some aditional variety to my collection.
Are there certain tones you are after with a PRS? Maybe I can help steer you in the right direction.