I totally forgot to state why. :sweat:
Black is the Kamen Rider of the Decade.
X is awesome. It's got a good story and Jin Keisuke is awesome.
555 is a drama about good and evil, responsibility, and change. It also features one of the greatest Kamen Riders of all time, Faiz.
Ryuki is a drama about people who fight for life. They fight to save others who will die, they fight to protect others, they fight for themselves, and most important, they fight to survive.
Double is the Kamen Rider of the decade. It incorporates elements from previous Kamen Rider series, but it takes a much more modern approach. In Kamen Rider Double, the meaning of Kamen Rider is rediscovered.
ZO (movie) is the story of a man whose mission is to protect a boy from a powerful being that adapts and becomes stronger during its existence. It's good because of ZO himself.
J (movie) is the story of a man who encounters alien life forms that attempt to destroy life on Earth. Through the powers of the Earth itself, he fights the threat to protect his homeworld and everyone in it. It's a good story and J is great.