Fel of the Eternal Forest
I have seen every single episode of power rangers ever produced.
The only bad seasons were Turbo(fuck this show), Lightspeed Rescue, Time Force, and Wild Force.
Lost Galaxy, Ninja Storm, SPD, Mystic Force, Operation Overdrive and RPM are decent.
Mighty Morphin, Zeo, Dino Thunder, and Jungle Fury are really good.