For sure same here. Not a fan of the revenge fights of Luffy. Sabo I find semi-acceptable since I think he can provide some ideological counter to Absolute justice due to being RA's chief of staff, potentially have his own ideology to counter that, but this is just wishful thinking on my end though.
But like you I prefer Fujitora vs Akainu, Purple Tiger vs Red Dog, over the above two. It's a much much more compelling fight, and narrative wise has a better pay off when it comes to both of these characters, if we take into account they're potentially friends and have past history. With that said though, I'll only take this fight over the above, if Oda actually gives it highlighted time like he would for any other major fight. If we see verbal interactions between Saka & Fuji.
Akainu is a javert character and I won't be satisfied if he only loses because someone punched harder than him.
I want his justice to be challenged and his view of the world and I don't believe Luffy will be capable of that.
Or big turn of event : nobody beats Akainu, Akainu stands tall and beats his counter part , and suddenly he heard that Imu is done for and everybody stops fighting and Fuji or the guy before him convince him to stop, that the world already changed etc.
Or Akainu discovers that Imu exists and Im and the CD do something so extreme that even Akainu can't defend them.