MMPR will always be iconic. Tommy, Kimberly, Trini, Zack and Billy nuff said.
I will say though, that the had a ton of intentional or unintentionally racist moments. I'm watching the Zordon era now on Netflix and the way they sent that black girl literally back to Africa as a send off was trifling There was helping a monster (that was depicted as Asian) to go back home. They were making something in the basement and the monster would constantly bash the workmanship of what they were doing.
There is more, but I can't remember them all.
Anyways, I stan for everything up until Wild Force (why is that getting votes) Then I choice Ninja Storm, S.P.D, R.P.M, Jungle Fury, and then Mega Force (Super).