The primary difference between Rajinikanth and Vijay lies in their respective acting styles and on-screen personas. Rajinikanth is known for his larger-than-life, charismatic presence and often portrays superhuman characters. In contrast, Vijay is celebrated for his relatable, everyman roles and versatile acting skills. Additionally, Rajinikanth has a significant political presence in Tamil Nadu, while Vijay has generally remained focused on his film career. Despite these distinctions, both actors enjoy massive fan followings and have left an indelible mark on the Tamil film industry.