Captain Picard's Hair wrote:The Akira's firepower is on the order of the Galaxy/Nebula, in a smaller package. Even in the age of the Sov, that's not inconsiderable, given the low numbers of such beasts as a Sovereign-class as yet. She's a front-line battleship. There could be smaller patrol or policing roles for which a Steamrunner-type would be suitable. There does have to be some policing to be done, after all; we've even seen some shadier parts of the Trek universe in spite of Picard's bluster...
Local policing roles would be just as well served by a Defiant which is far more powerful, much safer and has a cloak.
As to the Akira being a battleship. Most battleships are built to go toe to toe with other battleships. The Akira's firepower is mostly based on her PTLs. Which while good for ranged combat will sooner or later run out and you don't want a battleship that is going to run out of torps midway through a battle. GCS and Nebs base most of their firepower on phasers, a lot of phasers. Those would be battlecruisers or battleships by standard. The Sov is the first ship to really mix heavy amounts of both phasers and TLs though I think of the Sov more like the Star Trek version of a Dreadnought.