[Bionichute]

Go-Busters is objectively* the best Sentai season, Kyoryuger is objectively* the worst, ToQger is worse than most people say it is, Ninninger appeals specifically to me so I look back on it fondly but get why people don't like it, Zyuohger has some of the best villains in Sentai period alongside some of the best Rangers, and Kyuranger started off very poorly but by the end I thought it was pretty good.

Sentai, like a lot of things, is based around opinion. I'd call some of the earlier series (Mostly the 80's period, again there was good stuff there but, oof, Fiveman.) worse than anything besides Kyoryuger. Though Fiveman does get very close to being that bad.

Basically I don't think that Sentai has HAD a dark age. Kamen Rider on the other hand...

*"Objectively" in this case is used for humor, I just really like Go-Busters and super dislike Kyoryuger.