Again, I’m listing 7 rivals instead of 8, so this is the last one. So I’m going to place down my last pair of great rivals and then some extra examples of who I think are powerful examples of rivals in the same animation genre.
My last pick are from a classic – Go Kenichi vs Prince Heinel from VOLTES V.
In most cover art for home releases, you see these two.
Putting aside spoilers, they follow a long-running archetype of an enemy of royalty and a “hot-tempered good group leader” such as Golion’s Sinkurain and Kogane (in Voltron, it’s Keith and Lotor), who have encountered each other various times. Thus, it follows through the majority of the show. In most classics, the main enemy is perhaps an ugly enemy or an old creature that pull the reigns of a giant army. Hanging on to that main enemy is a supporter who may have a significant role. That is the case of Heinel; Go Kenichi is the main character of Voltes V and the main driver of Volt Machine 1: Volt Cruiser. In combination robots with more than one crew member, it’s usually the MC’s machine that forms the main body and head. Go is interesting in a sense that he is reckless and determined with impactful (or corny) dialogue. The care that he has in family is strong, and his brothers happen to make up much of the Voltes crew. That isn’t something often seen.
Another interesting tidbit is that the Heinel’s VA, Ichikawa Osamu (市川治), who is unfortunately deceased, had a penchant to play these “Strong and noble/prideful bad guys”. Due to his voice and the character designs, there is a connection to Voltes V’s Heinel, Brave Raideen’s Prince Sharkin , and Combattler V’s Garuda, all robot shows. Funny enough, they work together in the Super Robot Wars series. Ichikawa, also the voice actor of Norris Packard (the “rival” of Shiro) in Mobile Suit Gundam 08th MS Team.
In conclusion, here are more examples:
OBLIGATORY Vegeta vs Goku. They are still rivals. STILL! There’s also Goku vs Piccolo (King and Junior)
Obligatory Naruto vs Sasuke. This has been going on for 15 years. Their paths have been apart for a longest.
Kai and Takeo (Tyson)
タカオVSカイ by 最上 at PIXIV
Ginga vs Kyouya (Metal Fight Beyblade)
Kagura and Amata (Aquarion EVOL). I wanted to add them, but I haven’t watched the series fully so I didn’t properly examine. However, there is a close connection between these two.
Max vs Millia (Macross/Robotech). Before Alto and Brera, Keith vs Hayate and Messer, Isamu/Guildo, or Roy and D.D, there was these two for a while. It was even covered in the “Do you Remember Love” movie.
GARO (Kouga) vs Zero (Rei). At each other’s throat for the longest over a misunderstanding.
Iczer-1 and Iczer-2. Covered this in my review. I think they are fabulous, but I had my reasons to not add them. They are a definite notable mention.
Elle vs Faury (SHADOW SKILL). Check out my short review on the OVA series. Its brief since they put their differences aside and became friends.
Hayato vs Shinjyo (Cyber Formula). At least in the TV series.
A lot of rivalries are in the sports genre.