@Theboiwholaughs0009
1. I'm assuming you're referring to a GOAT known as Sanji. I do agree, but it would be difficult for him to take them on all at once but he'd eventually win a very difficult fight. I am assuming you are also referring to the 3 Sweet Commanders.
2. I...don't really agree with the Senjumaru statement. Aizen's too smart to get caught in Senjumaru's Bankai and his Shikai is very potent and very quick to activate. Considering the RG are stated to be on par or greater to the Gotei 13, who Aizen soloed without much difficulty in a weaker state, I don't believe the RG would beat Aizen without difficulty. Ichibei is the only real threat to Aizen, in my opinion. Aizen would lose to Ichibei in this state.
3. I haven't caught up with Boruto, so I wouldn't know.
4. I haven't seen the sequel, so I wouldn't know.
5. Yes. I agree with this, but it is very difficult to rank characters who were essentially created for plot convenience. It's like saying Yuki can easily beat Geto (which she can) but is difficult for fans to accept since she only had one major fight in the series, same as Stars and Stripes. Stars and Stripes would have a very tough matchup against All Might, but All Might is nerfed in this part of the story. Prime All Might beats Stars and Stripes, however.