@taichokage: Yep I would say he could take on most of the strawhat crew pre-time skip.
"Swords Dance will boost the power of Arceus's STAB ExtremeSpeed to horrifyingly powerful levels, devastating anything in Arceus's way that isn't resembling a physical tank. With just a Silk Scarf and Swords Dance boost, it is more than strong enough to OHKO even the bulkiest of Uber titans, such as Mewtwo, Kyogre, Reshiram, Palkia, Zekrom, and Ho-Oh." From the link you posted.
Although if you cheat like you have and give him aura sphere as well as generation 1 stats he'd win like how he did in that video posted earlier.
They were able to take a Pacifista out even pre time skip. Yes it was hard but they did it nonetheless, yet when Kuma came he took them all out without them even touching him. He beat them so bad that he was the first person to make Luffy truly despair in the main storyline.
There's still many people stronger than Luffy, otherwise what's the point in the manga even continuing anymore. Kuma's an especially powerful opponent and there is no way any of the strawhat crew are going to be able to beat him as it stands. Example, this new guy, Vergo who absolutely stomped Trafalgar. Just because Luffy's going around fighting average level opponents doesn't mean he's become an admiral level pirate.
Power levels are bullshit after the Frieza saga. How were they bullshit up till that point? If your power level was stronger you won, that's pretty much how DBZ worked.
Power levels became bullshit after Toriyama continued the manga due to fan demand. The series was meant to end at the Frieza saga. After Frieza saga everything became skewed and made a lot less sense power level wise.
As for this battle, like I said Zarbon probably will win. Ginyu can't use any of Goku's key attacks and both Zarbon and Ginyu are effectively at the same power level. Maybe Ginyu's power level doesn't decrease but either way without having good knowledge of his new body he won't be able to win against Zarbon.
Jeice measured his power level at 23,000. In the manga Goku doesn't fight along side Gohan and Krillin and you can see from the scans and from reading the manga that he is either stagnant at 23,000 or as Jeice said, getting weaker.
@ReiKai: I'm fairly sure Jeice stated in the anime that Ginyu's power level was falling not rising, hence why Gohan and Krillin were able to beat him.
It's confirmed by the above two scans that while Ginyu was able to fight against them in the first scan, by the second scan he was getting his ass handed to him. On the next few panels his blasts aren't even able to hurt Gohan. Which is why I think he might have a chance at the start of the fight because his power level is probably above 23,000 but as the fight goes on his power level will drop and his chances of winning will fall.
@nishi99: That would be pretty cool. I remember the manga continued long after the series finished and it looked pretty interesting.
I'd love to see a remade New Adventures of Gigantor.
Maybe another season of Trigun, FMP.
I also really thought they should finish off Eyeshield 21 properly, can't believe they just stopped it.
Recoome's power level has been stated to be higher than the other two's in at least 3 different games. Just marginally but still higher. I think his greatest competition would be Burter because he's probably a little faster but I think Recoome would take battle 1.
He'd definitely take 2 and 3 though.
Probably Zarbon. Jeice measured Captain Ginyu's power level at 23,000 and said it was falling. If the fight its prolonged then Zarbon will win and I can imagine Captain Ginyu showing off in his new body for long enough before Zarbon gets the upper hand.