If you really want to set yourself above the rest design something like Porsche markets have for their cars. Like the sway bar below. Eliminate the bending and heat treating required when bending bars that can cause fatigue. You could also make these hallow to reduce weight. Of course, I doubt this is even possible with the design of our undercarriage.
If you want something different, then consider a tubular design sway bar, to save weight. The thicker the outside diameter the better. They can perform almost as good as a bar that is solid and the same thickness. Also, it matters how they are made with tubular design. IIRC, rolled design is better then gun drilled, which you would only see a slight decrease in weight.