Sorry didn't answer the rest of your post. I think Luffy is top obviously, and Kid and Law are his greatest allies. Then Zoro/Killer being the subordinates. I'd say Sanji, if included, is above Killer but below Zoro obviously. I think these 6 men are the people who may fight Im and the Gorosei. And yes I think at some point Zoro will be much closer to Luffy than Kid/Law (for Zoro fans please don't attack me for my opinions lol)
I think Blackbeard/Shanks/Admirals are exclusively strawhat fights, but the WG can be a combination of Supernova and Sanji. Less WG members are probably handled by other Strawhats, weaker Supernova like Bege and SHF members. Revolutionaries seem like they'll fight CP-0 imo.
Idk, just random spitballing don't take what I'm saying too seriously, it's ironically still too early to know how everything plays out lol