I think this debate will be ever going. My input on it is that Butter is just another line of Lesser than somebody got and made it its own line. They do the same thing to every morph i would just say there are slight differences. Almost like the lemon pastels vs. the average pastel. I think the butters are just a darker line of lessers. They ever both do the "Platty/Butter Daddy". this is just my opinion, feel free to criticize:)