Honeymooners Luffy and Hancock
Revolutionaries Kuma and Ivankov
This battle is awesome. I'm not particularly confident in my answer on this one. I'd give the advantage to the Revolutionaries at the moment. For me, Luffy has yet to show that he would be able to win against Kuma. This is probably owed to the fact that Luffy hasn't really been given the chance. Since the timeskip, he hasn't been given the opportunity to show his full range in battle. The other thing is that Boa's DF ability is up against two individuals who are likely to go unaffected by her non-contact petrification. Kuma still has one of the most ridiculous DF abilities in the manga. Ivankov, despite the endless antics, is a beast. So, I'm leaning towards Kuma & Ivankov.
Well at the very least Hancock has shown that she can effect lustless objects with slave arrow... and her fighting style is deadly in conjunction with her devil fruit, and even if it's countered by being lustless it still has impact as she is a haki user, more than likely capable of using all 3 types...
Luffy has shown enough to at least give Kuma a strong run for his money... and I believe he more than Likely would be able to even put Iva down with his aggressive attack style...
Here's where I see the real trouble for Luffy and Hancock...
Kuma and Ivankov together have not only insane power, but insane complimentary support... Between Healing and Energizing Hormones, and Kuma's ability to remove Pain and Fatigue, this battle will be the greatest battle of Endurance Luffy will ever have to push through to win...
Though when it comes to Luffy and Hancock their feelings of respectively Strong Friendship and Love will make them fight even harder for each other...
When Hancock gets hurt or "gulps" gets killed... Luffy goes beserk, and we could see something worse than with Rob Lucci
Then in the reversal, and the same thing happens to Luffy... well ask Smoker and countless Pacifista just how she can be...
Hancock, Kuma, and Luffy should be in the same league at this point in the story. I'm not at all convinced Ivankov is, however. So I give the edge to Hancock and Luffy.
Well, one thing we may be sure of. Hancock is going to wallow in her phantasies in this match again: Kuma acts as priest, Luffy and Hancock marry and Ivankov is the maid of honor.
As strong as I do believe ivankov to be I honestly don't think he would win either against luffy or hancock. Hancock is insanely strong and IMO it is very likely she is still a decent bit stronger than luffy. We know that at least she has fully mastered haki and her fruit has a number of abilities ambiguously related to love. Even if she can't petrify either of them there is no reason for her arrows and a few other attacks we have seen to not work on them. And even then she is still a powerful physical fighter. Kuma could or not be the strongest one here but since he IMO has the weakest person here as a team mate I give this to luffy and hankock.
Imo Kuma was nerfed by Oda (made in to a cyborg), because he understands that his powers are just god-like, it's basically one touch one kill, in shabaody the straw hats and the pacifista were hopeless against him, i don't see how Luffy could deal with him (or anyone else for that matter).
Wow, this would be a good match!
Hancock can definitely match Ivankov. I'd say they would be fighting toe to toe for a long time.
It would come down to Luffy or Kuma. I think Kuma now isn't as strong as he used to be since he's totally a cyborg, and probably not as quick-witted as he was before. But I'm not sure that's enough for Luffy to win. The only chance Luffy has is to be able to evade Kuma's attacks using Haki. Even one hit from Kuma's paws could send him flying into the sea or something.
It would be quite a spectacle, though.