I've had the factory plastic stock, a couple of the Revolution Explorer laminate stocks
http://www.revolutionstocks.com/rugerstocks/rugermini14-30stocks.php, and a Hogue stock on two different Minis.
I really like the look of the Explorer laminate stocks, and kept the one I have on my Mini-14 Target Model. I sold the brown laminate stock I'd had on a 16" SS Mini-14 and went back to the factory black plastic, solely for the sake of weight reduction. Photos attached of the Target Model which still has the laminate stock, and the 16" SS Mini in both stocks. With the Target Model I really don't care about the extra 1+ lb as it is really just a bench rest rifle at least for me.
As for the Hogue stock, I just hated the feel of the thing. And according to folks who've been down that path, the Hogue stock is the harderst one to bed because of what it's made of.
Unfortunately I never had a Ruger factory wood stock of any kind to compare to the others. But to for a basic all purpose carbine the factory black plastic stock has a lot going for it.