Akainu is definitely the Madara of this series no doubt. However it remains to be seen if Oda will pull a Kaguya with Imu, or not. I really hope not. Imu being a fighter would be shit.
Current Akainu would be the perfect last fight for Luffy.
- Current Akainu has probably surpassed general Top Tier lvl, and has reached the greats like Primebeard, Roger and Prime Garp.
- Akainu is the one character where I can't see Luffy laughing against him. Laughter being G5's source of power.....fighting against Akainu would put Luffy at a disadvantage.
- Akainu killed his brother, so of course we have the whole emotional shit
- We've already seen how hard Luffy finds it to fight against Flames/Magma when against Flaming Bague. Now against the man with a literal DF for it...which is far superior would be great.
- Akainu is the epitome of Order and Luffy is the epitome of Freedom