1- Oda said that Akainu can be the Pirate King in a single year. It's well known that to be the Pirate King, you HAVE to beat all the Yonko and get all the road poneglyphs. Basically, if Akainu gave half a shit and played silly pirate games like most of the characters for a year, he can be the Pirate King
2- Blackbeard and his crew ran away like bitches at the sight of Akainu
3- In the Akainu's databook, Oda said that his fruit has highest offensive power in the series
4- Even though Whitebeard was sick and dying, Oda made it clear that Akainu was perfectly fine after taking a surprise point blank Island shattering hits from an enraged WB with all the power he had left cause he knew he was dying. Akainu also managed to blow off half his head effortlessly. And after WB died, Akainu came up like it was nothing and fought all the commanders at the same time and they couldn't do shit
5- When Jinbei is talking with the Strawhats at Fishman Island he says: "with Sakazuki as the new Fleet Admiral the Navy has become a stronger force of justice than ever before". Where he's basically saying that with Sakazuki as the leader of the Navy, they have reached their prime, even above the previous one that had guys like prime Garp and Sengoku at their front line
2- Blackbeard and his crew ran away like bitches at the sight of Akainu
3- In the Akainu's databook, Oda said that his fruit has highest offensive power in the series
4- Even though Whitebeard was sick and dying, Oda made it clear that Akainu was perfectly fine after taking a surprise point blank Island shattering hits from an enraged WB with all the power he had left cause he knew he was dying. Akainu also managed to blow off half his head effortlessly. And after WB died, Akainu came up like it was nothing and fought all the commanders at the same time and they couldn't do shit
5- When Jinbei is talking with the Strawhats at Fishman Island he says: "with Sakazuki as the new Fleet Admiral the Navy has become a stronger force of justice than ever before". Where he's basically saying that with Sakazuki as the leader of the Navy, they have reached their prime, even above the previous one that had guys like prime Garp and Sengoku at their front line
He's just another braindead who hates Akainu shitting on his favorite characters