This is such a weird post.
I play on PS4 and even a casual Corvette players can rack up a lot of kills and do very well.
The Tactical Cruiser ( especially the Jupiter Tac ) are a good counter to Corvettes. ( Although I do agree that their silly laser beam has too long of a reach )
The Destroyer's Flak is suppossed to kill Corvettes AND anything else that gets close.
I did not play this game in it's early stages but I will agree that the Dreadnoughts need some kind of buff, I find them very lacking in a lot of areas. They are too slow and are terrible at tanking. Low damage output as well.
I'm not sure if buffing damage or health is the fix but to me they simply feel like they do not deserve to be called Dreadnoughts.
In the Dread vs Destroyer contest, I find that a Destroyer with Evasive Maneuver that uses Disruptor, Drain, or even Scrambler can easily win the engagement.
Disruptor to me is very very strong against a dread as it literally turns Off any Armor boost or hardener. ( A module a Dreadnought pilot may be counting on )