Originally Posted by JAJ
As the car rolls, the CG moves away from the C/L. That transfers additional weight to the outside tire. Stiffer springs reduce roll and transfer less. Swaybars don't transfer less, they just roll less - a "stealth" reduction in performance.
I think you would find both transfer exactly the same. For any given roll and CG position you know the weight transfer inside to outside. Asuming steady state.
Bottom line is the only way to keep a car from rolling is to transfer enough weight to offset the location of the CG. How you transfer it, springs, bars, magnets, air bags, ... doesn't really matter.