Go to a range, find a club, or some friends that have Smiths/Colts/Rugers and see what feels best for you - I like and carry K frame Smiths, they feel (grip and point) right for me
There are plenty of aftermarket grips for revolvers if you don't like the feel of the gun. I have a Hogue monogrip coming for my new SP101. I have Hogues on my M10, and my 3" Taurus 66. I had one of the early nylon ones on my old Security Six. I like Hogue grips. The wood most medium frame Smiths and the old Security Sixes come with and the medium frame Tauri come with is suitable mainly for starting fires.
My SP101's recoil tends to damage my middle finger's knuckle. The stock grip is okay, but doesn't fill in the gap behind the trigger well enough to avoid knuckle damage, therefore, the Hogue is on the way. Neat thing about the SP101, too, is it doesn't have the normal metal grip frame in either round or square butt configuration. It has only a small rail that extends out from the frame and will accept round or square butt profile grips either one, sky's the limit on grip shape. The one that it comes with is a square butt profile, but the hogue is more of a round butt design and with finger grooves that I like for indexing the hand on the draw. To me, the ability to change the grip, and on the Rugers the grip profile, at will is a big advantage the revolver has over the autoloader. I've never been a stickler for "feel" of the gun in the hand, anyway. I can adapt. To me, a guy that can't adapt to, say, a Glock (one of the guns everyone thinks "doesn't fit" their hand) is just bogus. Hey, ADAPT YOUR GRIP TO THE GUN AND SHOOT IT! But, some grips are more comfortable to shoot than others, so for a PDW, it's a legitimate complaint I guess, just as I don't care much for the stock grip on the SP101 for the reasons I give. However, with a revolver, and especially a Ruger, the grip shape is not written in stone. You can change it to suit you. The monogrip in rubber is all of 15 bucks and change from midwayusa.com.
If I had my choice of grip shapes, I'd build a DA gun with an SA revolver's grip, personally. I love the feel and the way a single action handles recoil by rolling up in the hand. It's natural on a single action since you have to cock the hammer every shot. I reckon it might slow down DA fire a bit. But, with a .454 Casull, a single action sure feels better than a double action to shoot!
Anyway, don't sweat the grip on the gun you look at. It can easily be changed and, in fact, that's one of the things I usually do on any DA revolver. None of 'em come with a decent grip, at least none of 'em I've bought, with the one exception of my little Taurus M85UL. It has a dandy little rubber boot grip that, for concealment and shooting, cannot be improved upon IMHO. I pocket carry the gun and it hides well and is comfortable to shoot with +P .38 and points well.