In terms of "crew role" i can get it
But when it comes to combat and behavior of the actual character up to now the pics I posted outclass that "Minister of Love" thing
Hahahaha bro why you going against Sanjitards. They will bring you down to their level and ..................... still lose (they are born to lose). Dont you know same panel sharing is enough for them to push equality. They now have a top tier benchmark (who has ACoC and FS) finally after only having Ivankov for idk how many years, dont think they will let you take that away from them.
Killer is indeed a leader of this generation of pirates, Oda kept him away but his RT showing wasnt the worst. Just as Sanji fans push Zoro and Sanji being equal because they attacked King and Queen together there is a better case for Killer to be equal to Zoro since they attacked Kaido together. Come to think of it Killer actually fought and damaged Kaido while Sanji didnt even meet Kaido and only once attacked to parry/block BM in WCI along with Luffy.
On topic though, the parallels are there, in terms of look and fighting style. But his relationship is that of a partner not a subordinate like Gaban. Killers parallels are Ray and Benn, the mature partners to the goofy/emotional captains.