Forum:KB:Equal use of the Force & Darkside Users

Besides THE FATHER in the MORTIS episodes_Clone Wars, and AnakinSkywalker/DarthVader, is there a list of and/or closest to said description of Force/DarkUsers with 50/50 ratio of use in the known Galaxy? I figure the Father fits this category perfectly, and Anakin/Vader fits in sense of his lifespan, first using the force, then the Darkside, then back to the Force, classic Yin/Yang treatment. Any other characters come to mind? Note: Not people like Starkiller, raised in the Darkside, coming over to the Force and/or Count Dooku, learned in the Force, then proceeded towards the Darkside.