Majin Buu
2/10
Majin Buu is quite frankly one of the the worst villains in all of DBZ..he just doesnt have the depth, swagger, or charisma of the previous super villains. To me, Buu is more of a movie villain level than a canon level straight out the manga super villain. For him to be the last supervillain of DBZ was a total let down.
Also, his arc dragged on and on, and he kept transforming. His transformations make no sense as well. How can he eat himself and then transform so wildly? Aside from being mindless retard in Fat/Good, Super, and Kid forms...his best forms were his Super forms with absorbtions [ie Buutenks, Buucollo, and Buuhan]. The only problem is Buutenks/Buucollo and Buuhan are all just lamer version of Perfect Cell.
Also Buu's regeneration is maddening. Who cares what your power level is if you can just regenerate instantly, endlessly, and even from molecular levels and beyond. I mean what on Earth is the point in fighting such a creature? Would it not get annoying smashing a guy's face inside out onlhy for him to instantly regenerate good as new? At least Cell's regeneration cost him lots of ki, and he could only do it if his core remained. While Buu's regeneration is obviously far superior to Cell's...it's to a point of such extreme it just gets very stale watching him continuously doing it. I only give him a 2.5/10 and not a 1 because of the Buutenks/Buucollo/Buuhan forms, but even they are just OK, and he still suffers from regeneration hax out the ass. I feel his whole arc was definitely the beginning of the end for the Dragon Balll Francise.