1. Tommy as green ranger
2. Jason as red ranger
3. Carter as lightspeed rescue red ranger
4. Andros as red space ranger
5. Nick/Bowen as red mystic force

-Carter LSR Red
-Magna Defender
-Eric-quantum
-Ziggy RPM green
-Merrick WF Lunar

5. Carter Grayson
(Lightspeed Rescue Red, Time Force (LR Red), Wild Force (LR Red)), BAD-ASS.
4. Scott Truman
(RPM Red), Baby Carriage.
3. Ziggy Grover
(RPM Green), The puppets convinced me.
2. Adam Park
(Mighty Morphin' Black, Zeo Ranger 4, Turbo Green, In Space (MMPR Black), Operation Overdrive (MMPR Black)), Morphenomenal!
1. Flynn McAllistair
(RPM Blue), He's Scottish!

Honorable mentions:
Tommy Oliver
(MMPR Green, MMPR White, Zeo Ranger 5, Turbo Red, Wild Force (Zeo Ranger 5), Dino Thunder Black, SPD (Dino Thunder Black)), 5-in-1-in-8
Kendrix Morgan
(Lost Galaxy Pink, Lightspeed Rescue (Lost Galaxy Pink)), Going in the line of duty
Magna Defender/Mike Corbett
(Lost Galaxy Magna Defender), Going in the line of duty/Breathing in space.

It's just going to end up being Tommy, isn't it?

More than likely this will be a one horse race... But hell, let's make it official already! :P

1) Tommy/Green Ranger (MMPR)
2) Cameron/Green Samurai Ranger (Ninja Storm)
3) Jason/Red Ranger (MMPR)
4) Mike/Magna Defender (Lost Galaxy)
5) Doggie/Shadow Ranger (S.P.D.)

In no particular order:

Tommy- green/ white ranger (MMPR)
Doggie- shadow ranger (S.P.D)
Daggeron- Solaris knight (Mystic force)
Jen- pink ranger (Time force)
Wes- red ranger (Time force)

We all know Tommy's gonna win. I'm far my interested in second place. This tournament would be a lot harder if it was Super Sentai. In order of best to least best (bolded the names to help the counting):

Doggie/Shadow Ranger. The most badass alien dog snake ever.
RJ/Wolf Ranger. He kills things with his knees.
Billy/MMPR Blue. He is PR's Donatello.
Kimberly/MMPR Pink. First character to really have a stoty arc outside of Tommy.
Karone/Astronema/Galaxy Pink II. I'm sort of cheating here as she wasn't a ranger for very long and I barely saw those episodes, but she still counts.

Honorable mentions:
Dr. K. Not a ranger, but a huge part of what made RPM so enjoyable.
Blue Centurion. Why? Because he gave us one of the single best lines every.
Magna Defender. Not Mike. The real Magna Defender. Once he died, I literally quit watching PR for years. And that booming voice is still awesome.
Tommy and his raindow spandex. He doesn't need my help.

1. Jason (MMPR Red)
2. Doggie Kruger (SPD Shadow Ranger)
3. Wes (TF Red)
4. Jen (TF Pink)
5. Dillon (RPM Black)

F Tommy!! :)