I apparently like 5-shot snubs, as I own 8 of them at the moment.
I have a SP101 DAO 2.25" and 7 J-frames (2 steel, the rest aluminum and Scandium aluminum, 2 of which are .357's).
I prefer the SP101 for shooting a lot of Magnum loads.
The steel J's make shooting +P's rather controllable.
The Airweights are the easiest for pocket holster carry, but they can become tiring as I reach the point of shooting 100-150 rounds of +P. The bottom knuckle of my index finger starts to get hammered by the trigger guard during recoil.
My first Airweight was an original production 642-1 rated for +P. It was lighter and easier to carry than my well-used 649 Bodyguard (.38Spl model). I kicked myself for never having bought an Airweight before that one. I liked it so much I eventually picked up another one to spread out the range use between them. (I went through a couple of cases of ammo in that 642 while dusting off my DA revolver skills, as I'd not carried a revolver on or off duty for several years prior to buying it.)
I picked up a M&P 340 when they first released. (I was told mine was pulled from the first production batch.) I wasn't particularly interested in it for the .357 Magnum chambering, but for the stronger Scandium aluminum frame and the front XS night sight. Sort of an "improved" 642 (since it has a PVD coated stainless steel cylinder).
I use that original M&P 340 as my "range beater", and as my "practice" gun for maintaining my S&W revolver armorer skills. (I've cut more than a couple of new extractors for it as practice, since they only let us cut one in the armorer class.)
I found my favorite feature of the M&P 340 turned out to be the XS front night sight, combined with the nice U-shaped rear notch machined in the top strap. It's the standard size "dot", which I found I like much better than the "Big Dot" sight setup I have on my CS45 (from the previous Ashley Express days).
Not so big that it covers a lot of the intended target at closer ranges (3-12 yds), but still plenty large enough for my 60 year old eyes to see, pick up and align within the rear notch. Probably the best sight setup I've seen & used on a J-frame. Certainly easier & faster to see than the various paint colors I have on my other J's. Let's me make faster, tighter grouped shot strings during quals & drills. What's not to like?
As with my first 642-1, I liked that first M&P 340 well enough that I picked up a second one. I used the excuse of a No-Lock variation being released to justify buying the second one. However, the one I most often carry as a retirement weapon, and use at the range, is that first well-used M&P 340 (with the lock).
I've sometimes wished I'd picked up a new model M42, or even a M40, as well as one of the 638 Bodyguards when they first produced them rated for +P, just to round out my collection.
Guess it's fair to say I like the diminutive S&W J's.