Hi Stephen!
The Baja Designs S8 30" behind the grille light is a great choice! Very bright, well made, great light disperion and backed by a lifetime warranty. If Rugged Ridge and Rigid are the only two fog light options, we'd highly suggest Rigid. Rigid's D Series Pro lights, depending upon which exact model, produce some very bright light. Rigid also makes an SAE (rated for on road use with traffic) model as well.
If you're going with a Baja light bar, you should also consider the Baja Designs Squadron series for fog lights. Those are some of the brightest lights out there with their Sport series producing 3150 lumens each and their Pro series producing 4600 lumens each. The Pro series now features CREE LED's which translates to 20% more reach and they dropped the price a bit on them.
If there's anything we can do to help get you and your truck outfitted, please let us know! We keep a lot of Rigid and Baja lights in stock and ready to ship.
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Here's a pic of the Baja 30" S8, Baja 10" Onx6 and a set of Baja fog lights