I think stock is rather boring since it's easy to do and you leave a lot on the table. I say have fun with it and improve as needed.
I would have have to disagree with you. Having gone full circle from stock to building and driving killer trail rigs to competition rock buggies to a full on restoration, I can tell you that the most challenging and rewarding build in my opinion is a restoration. Also, I have discovered you can have just as much fun getting a stock rig with just a rear locker and 31's up a difficult trail to a cool destination as you can driving the toughest rock trails in a full on buggy. JMO