Hmm, I wonder about the role of bias in our assessments... for example, it seems like Volition tried to put people off the Pegasus with the tech room description when all it lacks is firepower (2 Prometheus S at the most). Its durability is only a smidgeon below other Terran light fighters, more than offset by the tiny target profile and faster recharge rate (50% more power output than a Perseus or Ulysses) even before you take into account speed and manoeverability. Most people seem to completely ignore energy output, at least for ships that don't have 4-gun banks and Kayser compatibility.
Terran command seems to approve the oddest of ships... the Perseus is disappointingly slow for an interceptor (while being durable enough for extended dogfights), the Myrmidon is too sluggish for its stated primary role, the Artemis suffers from extremely poor gun placement which is terrible in a Bomber that appears optimised for some dogfighting ability, the Boanerges is a big fat target without even a turret to defend itself...
The Erinyes and Perseus I can accept as crafts meant to fulfil a variety of roles, but the others seem poorly designed.