I haven't seen Jungle Fury, so I'll vote Tommy.

and tommy has made a surprising comeback but casey is still winning. this could be a true cinderella story!

I don't think so. I'm pretty sure people are voting Casey not because they think he's better, but because they don't want Tommy to win :lol
It's kind of hard to like the canonically confirmed "Greatest Ranger Ever" and people love an underdog.

And who better to be the underdog than the...Cat.

I could make so many jokes from that statement, but I'd end up angering someone.

So I'll just say RJ.

Whoaaaa, Casey is actually winning! Well, time to add my vote to Casey's too.

From a purely power perpective, is Casey really stronger than Zeo Tommy? I never got the impression that Casey was even as strong as Jan from Gekiranger to begin with.

Well, what does Zeo have?

Casey has nunchuks, at least.

Voted for Casey.

Would rather see Tommy win as the Black Brachio Ranger from Dino Thunder. :D

Well, Zeo Tommy has a really big wheel he can get in and roll at people.

That's totally a thing.

Tommy has a sword, Tanya has Nunchaku, Casey has both.
Tommy has two mecha (Phoenix that's pretty much a jet and "Star Robot"), Casey has three (Tiger made of energy, Gorilla made of energy, and FLYING SHARK MADE OF ENERGY THAT BECOMES SUPER SHARP BLADES).
Tommy's powers just get stronger without Tommy needing to do anything, Casey's get stronger the more he works for it.

Casey also had that super roar he used in the pilot and a super mode with rocket jets.

Casey has Jet Fu and Jet Fu is awesome. :D