The Monster Trio
man i think this is quite simple the monster trio would be the winner because i think that they have already surpassed those shibukai level
Shichibukai level isnt surpassed by monster trio because there are weaker and stronger warlords. I think that Zoro, Sanji and Luffy would defeat some of shichibukais but Kuma is one of the strongest. If we talk about situation with current monster trio against one Kuma then they win with some effort but non of them is beaten up.
I think Sanji would win against Kuma and later assist Luffy against Kuma, while Zoro would be busy with Jinbei! And in the end the strawhats would win a pretty hard battle, and everyone would be as bad as Luffy was after his clash with Lucci.
I think the monster trio would win for 2 reasons:
Moria is not quite up there with jinbe and kuma
Monster trio would have better teamwork
Other than that I would think the monster trio are still in a best case scenario individually equal to jinbe or kuma.
Well, it always seemed to me that brainwashed Kuma is weaker than normal Kuma. I don't think that he'd have been touched by Ivankov at the war if he was his normal self. And also, they will be no teamwork between these tree, unlike the monster trio.
I give it to the monster trio.