Surprisingly enough, this is not about problems I have with any particular aspect of FS.
Rather, inspired by a side conversation from the "Atmospheric Fighters" thread, I decided to start thinking about the grievances people had with any of the ships in FS1 and 2. I recall reading an opinion that the Valkyrie was actually not that effective of an interceptor owing to its low durability and secondary payload.
Personally, I have an intense dislike for the Myrmidon- the gun firepower is nice, but the secondary banks (generally speaking) I find lacking, and the mobility is not sufficient to counter for the Mymidon's rather low durability and large target profile. Plus, it doesn't look very Terran.
Also, I really don't like the Boanerges. Given a choice between that and an Ursa, I'll take an Ursa every time. The capability to carry a couple more bombs and a somewhat higher top speed does not excuse the other weaknesses of the design, namely the pathetic gun banks and Mayflower-esque handling. [Edit]: How could I forget the lack of a turret!?
Anybody else want to chime in? Seriously, don't hold back- say what you hate about a given ship, and perhaps offer ideas to improve a design. This doesn't even need to be limited to strike craft, and complaints about all classes are welcome.