Why you guys comparing it to the herc 2? The athena was retired before the herc 2 was deployed, they are different eras- although, they serve the same purpose, heavy assault, and the herc 2 is obviously better at it.
I was just playing the port, took an Athena and loaded it with avenger, flail and 40 interceptors. Hit a fighter and get it in flail lock, then fire a pair of interceptors, you get a fast easy kill. I would take this ship a lot except the Herc completely obsoletes it when it comes out 'cause it can do the same thing, only has 10 fewer misisles (using intercepts). So you really only end up with flying the athena in like 2 missions. Athena is a bit faster though, it's afterburner speed is equal to the Valk's (165).