Either the ball of light or just a light bulb. :p

Cassie would've fallen in love with a toaster in a cape if you told her it was myserious. Yes, I am calling her loose.

Phantom Ranger did absolutely nothing but get his ass kicked, give away Zords, and be all "ooo you dun know whos I ams...."

Meanwhile Sam actually did something meaningful.

Phantom Ranger was the man. Points for being a throwaway character from Carranger made into a major player in the US, and that they never revealed an identity for him.

Sam was from the future but didn't tell the Rangers of events to alter and prevent crimes.
I don't care if Mecha-Jesus was revealed to be the Omega Ranger. That misstep makes me refuse to acknowledge anything meaningful he could do, since, by being from the future, the most meaningful thing he could do was prevent the crime from ever happening to begin with.

Phantom Ranger can turn invisible and was proactive in the search for Zordon. Not helped that he appeared for a whopping (And make sure you're sitting down for this) 9 episodes.

Sam couldn't. That's one of the first rules of time travel whatever the genre or mode of leaping through the clock. You can't divulge future events because they might impact that future and change it for the worse. Like if you go back in time and kill Hitler. You end up with someone worse.

And Sam said himself that came back from the future to save them and he couldn't say how. Just that it was the worst day they would ever have.

And how exactly was Phantom Ranger useful? He gave them Zords, alright. And some search for Zordon, how'd that end for him? Oh right. Him getting his ass handed to him by Rita and Lord Zedd along with Blue Centurian who deserves a Rocky vote when he comes up. He did Nothing. Absolutely nothing but Ooooo Myserious.... Ooooo... He doesn't deserve this. I'd vote for Eric over this useless waste of plot.

Time travel is fickle as is. If Time Force could radically alter things with no ramifications, then SPD should, too.

And I'm not saying the Phantom Ranger is the greatest ranger ever.
I'm just saying that he's awesome and I'm always gonna vote for him because why not :p

So, would the Omega Ranger Helmet be used for the Megaforce Silver head or would Ball-of-Light Sam be used if Sam won?

It's highly unlikely, but still.

Let's be honest. This is the round of people who'll lose the next round, I have no illusions about Sam (if he wins this) moving further. And Phantom just plain doesn't deserve to.

Should you really hold any authority on who deserves to win and who doesn't when you admit to voting against anyone In Space on the sole basis that they're from In Space?

That happens to be a voting criteria we should all follow! Genius is always unappreciated in it's time. Sad really.