2. “Power Rangers In Space”
Aired: 1998
Zords: Mega Vehicles
Key Villains: Psycho Rangers, Astronema, Darkonda, Ecliptor
Special Ranger: The Silver Ranger

This was the season that sealed the fate of “Power Rangers” rip-off “Big Bad Beetleborgs,” and it’s easy to see why. A huge improvement over “Zeo” and “Turbo,” “In Space” was a classic season that featured interesting new villains as well as a darker tone that blurred the line between good and evil. Especially effective was the revelation that the season’s main antagonist Astronema was the Red Ranger’s sister.

1. “Mighty Morphin Power Rangers”
Aired: 1993-1995
Zords: Dinozords, Thunderzords, and Ninjazords
Key Villains: Rita Repulsa, Lord Zedd, Goldan, Ivan Ooze (from “Mighty Morphin Power Rangers: The Movie”)
Special Ranger: The White Ranger

You just can’t beat the original. “Power Rangers in Space” came close, but the original Rangers made their way into our hearts and they've stayed there. The first series had everything a child (and arguably an adult) could want: humor, action, high school students with superpowers who fought monsters in their free time. Everything in this series was on point: the Zords, the villains, the battles. Even the movie had all of the hallmark awesomeness of the series as a whole.