Umm, what? Zoro also had a hard time Kaku before he used Asura and Luffy damn near died in his battle. Does that make Franky stronger than them as well? Franky had an easy foe, while the other two fought opponents who were more than 2 times Fukuro's strength. Yes Franky fought Fukurou without much cola, however he still couldn't beat him until he got the cola. Sanji had already fought and got beat by Kalifa whom he wouldn't hit, so Sanji already went into his fight with Jabura partially injured, though probably not to a high extent. As for Jabura and Fukurou, we don't know how much Jabura's devil fruit counted towards his total Douriki, but it doesn't matter becuase Jabura was still a hell of a lot stronger than Fukurou.
We don't know what Sanji's strongest attack is so you can't use that as a measure of strength, we've barely seen any of the Strawhats fight after the time skip. I could easily say the same about Franky and his Radical Beam. And again going by the logic that Franky is stronger because his beam pierces everything, he is stronger than Luffy right? Luffy probably couldn't have escaped the PH cell. We don't know how many techniques Sanji has up his own sleeve, along with the rest of the crew.
Oda never directly calls them the "Monster Trio", but they fight the three strongest arc antagonist and they are recognized by the crew themselves as the strongest. Add that to the fact that the three seem to be the only haki users in the crew.
Sharp arguments, i like it.
I agreed with many things: Other abilities of the crew, Sanji fight previously with Califa and Zoro had to protect Usopp, injuring themselves. But there's the unique stats of both enemies here. Jabura has the mobile Tekkai, so it means that Sanji had to increase his critical kicks to defeat him. Other hand, Kaku had the agility of a Rankyaku master plus the harder Tekkai rised by the Ushi Ushi no Mi. Hence the resistance of the four was the big deal. Even Luffy had a bad time fighting with Franky because its versatility.
Thinking toughtness is the great wall to the
Monster Trio, then exists a number of enemies who they can't crush.
Luffy and Zoro overcome more than Sanji. Gigant Rifle and Shishi Sonson are techniques made to break through steel. They're out of discussion because the other ones can't.
Sanji's Haki really is an advance of the power, but which haki he has? Kenbunshoku should it be, if he can sense Nami screams.
Right now, as i said. Franky could fight even with Hodi Jones, just as Sanji. They are so close indeed. But i'm still thinking that Franky has more tricks to fight with a big spectrum of foes, until Sanji can do Busoshoku obviously.