[Matrixbeast]

I haven't seen much Sentai since many lost my interest early (Liveman, Sun Vulcan, Magiranger, and Boukenger are the main 4). So I'll just list what I can.

Jetman: Yellow Owl/Raita. The fat guy was my favorite. A man who wants to live a simple life raising crops is forced into action because he was one of the few who could do so. I enjoy watching characters afraid of their enemies rising up for the greater good. While he may not have been the most story relevant (2nd to last, only beaten by Ako), his focus episodes were the best. (Aside, I know Gai is generally seen as the best, but aside from the very end, he was token jerk at best, and borderline unlikable at worst. While he did have a few episodes to make him interesting, he just wasn't a solid character for most of the series)

Dairanger: Either Shishiranger/Daigo or Houohranger/Rin. I enjoy Daigo's love of the world and all life on it. His arc with Kujaku helps showcase this along with strong characterization for him. His only real failing is that his episodes also tend to have too strong of an environmentalist message. Rin is a character that starts strong, but just averages out. I enjoy her focus episodes and her significance to the story is hard to ignore.

Kakuranger: Ninja Black/Jiraiya. This was a hard one between him, Sasuke, and Tsuruhime. However, the OG ninja cowboy wins out in the end. His serious demeanor in the beginning contrasted the rest (Who were all raging jackasses) really well, and his poor Japanese skills was great. As the series became more serious, it just helped further as his story arc was well done and tragic.

Megaranger: MegaBlack/Kouichirou. This one is really the first that was just through process of elimination. The Megarangers were just idiot high schoolers with generic traits. I do think MegaSilver is fun, but only when unmorphed, so I just went with Kouichirou, the leader.

Dekaranger: DekaBreak/Tetsu. I enjoyed a lot of the Dekarangers, but I think what pushed DekaBreak to my favorite was his main story about encountering the one who killed his parents.

Gekiranger: All of 'em. ALL OF 'EM. It's too perfect! GekiRed/Jan for my most favorite (Since Rio isn't technically a ranger, but an "Other Hero"). His story of being a jungle kid in normal society isn't original, fair enough, but they did it right. How he lost his father and the story that comes soon after is just heart breaking. His attitude and attempts to remain forever optimistic is charming and brings a smile to my face. And the story with Rio. Oh god, the overarching story with Rio. It's sublime.

Goseiger: GoseiKnight/GoseiKnight. Header turned ranger. Already cool. However, his standoffish attitude towards the heroes is why I liked him. Not because he was an asshole, but because he was working towards the same goal, but the Goseigers weren't as efficient at it. As he lightened up, we got to see bits of humanity (For lack of a better term) and he became a true part o fthe team.

Gokaiger: GokaiRed/Marvelous. I'm not really big on any of the Gokaigers, but Marvelous is definitely my favorite of the bunch. I'm not a fan of cocky characters, but he carries his own charms.

Kyoryuger: KyoryuGreen/Souji. I hate this show, but Souji was one of the few good things about it. His growth was what made me interested. Being a loner, a swordsman in training (Despite being a borderline swords master), and just his overall attitude just worked for me. Of all the Kyoryugers, he was the one that felt like a real character, and not just a caricature of character tropes. He grew and changed, becoming more accepting of his friends, learning how to improve his abilities on screen and over time, and he was just the only interesting one.