@mbaruh:
My impression was that the new admirals (or at least Fuji) were just really strong fighters, and got their abilities upon conscription to further enhance their power. In Green Bit, when he summoned the meteor, he said that he was testing his power (if the translation is reliable), so that's how I understood it.
You may actually be right here. Thanks for pointing this out. It is likely but it's also just as likely that Fujitora lived a peaceful life hiding somewhere not using his powers and not coming into contact with anybody worth testing skills on. He is very reckless with his powers so he may have been given the fruit after joining the marines.
Also, the new Marines are over the top in terms of power. So they don't need anymore love to be honest. The addition of just Fujitora is massive. Fujitora is a peace loving fool, but he is incredibly strong. Took a haki boosted, gear third punh from Luffy to the face and was barely scratched. Wasn't even injured against Sabo while the latter looked completely manhandled. Right the Marines are on an entirely different level with 4 Admirals this powerful.
Just for reference, the Marines could easily dispatch any Yonkou crew using the Admirals and some VAs only. Using Kaidos crew as an example, Akainu and say Kizaru fight Kaido. Fujitora fights jack. And the green bull fights jacks third strongest. The rest are stalled by VAs. Green Bull defeats his man easily without a scratch and helps Fujitora who could beat Jack by himself but wouldn't say no to the help. Then they take down Kaido with them sustaining almost no heavy damage.
The way i see it, the Admirals are just a tad below the power of a Yonkou but far above a Yonkous second strongest. A Yonkou would struggle but win against any Admiral and be unable to defeat two.
This is just some thoughts and obviously all opinion. And the reason why the Marines don't take out the Yonkous is because while they can easily dispatch of any single Yonkou, they cannot mobilize that amount of power without leaving themselves exposed from a blind side attack by either another Yonkou or the Revolutionaries themselves. This is why the New World is currently a stagnant pool with nobody unable to do anything because of fear of everyone else. Can't wait for Luffy to take one out and all hell break loose.