[Wonderwall]

MMPR to me is on a golden standard itself, so I won't include any of the cast from those seasons. It's subjective, of course but these are my favorite rangers from the non-MMPR seasons. I'll list why for a couple, as most of these I'm listing are many fans favorites and need no real explanation.

TJ - Turbo/Space (Had some big shoes to fill in, and I felt he did well with what was given to him)
Mike - Lost Galaxy (Despite not an official ranger, he was the most memorable character from LG. Provided excellent non-red leadership)
Carter - Lightspeed Rescue
Jen/Wes - Time Force
Dustin - Ninja Storm
Conner/Ethan/Kira - Dino Thunder (Hard to choose one over the other, felt like they were all great.)
Bridge - SPD
Rose - Operation Overdrive (Weird choice, but this is mainly due to the fact, she was one of the few female rangers to be chosen for what her intelligence brought to the team, and actually remained relevant during the entire series.)
RJ - Jungle Fury
Ziggy - RPM