Hokuto no Ken: Raoh Gaiden Gekitou-hen

Although their setting and mood are different (with OPM being a comedy and HnK being more tragic), both anime focus on an overpowered main character, who kills enemies almost effortlessly. Both have great art and over the top action. 

The events in both of these OVAs happen in a post-apocalyptic world. The main characters are both tall, muscular and very powerful men. They also try to help innocent people by killing evildoers in gory and violent ways.  

The events in both of these OVAs happen in a post-apocalyptic world. The main characters are both tall, muscular and very powerful men. They also try to help innocent people by killing evildoers in gory and violent ways. 

The events in both of these OVAs happen in a post-apocalyptic world. The main characters are both tall, muscular and very powerful men. They also try to help innocent people by killing evildoers in gory and violent ways. 

Both films mark the ending of their adapted story arcs which offer high quality animation, dispute among brothers/comrades, and a very tragic conclusion.