I drove my truck with the stock duals 9.00-20 and flipped the hubs, drove it with 9.00-20 NDTs singled out and then upgraded to 11.00-20 radials. All this to say that I have a little bit of experience with different configurations.
Look-wise, I much prefer the duals, preferably aggressive tread 11.00-20 radials. Close second are oversized singles.
The NDTs are not tires I want on my truck if I plan any amount of on road driving. Too hard, too loud, too rough.
For driving manners, I love the Goodyear G286 that I have. There is less weight jumping around on the rear axles and the truck, singled, actually does a tight (ya, right) turn without trying to peel the front tires off the rims. It all depends what you want your truck to do and whether looks or function are more important to you.