I prefer using a bomber (usually my Falcata) to fight but don't be surprised if you see me zooming around in my Nomad light fighter (not to be confused with a glass vase).
Bombers are probably the most versatile ship category in the mod and that's why I use them. They are great for:
A. Taking down capital ships
B. Taking down fighters (depending on the ship)
C. Fending off multiple attackers (depending on the skill of the bomber pilot)
D. Pirating
E. Switching roles from anti cap to anti fighter/bomber (depending on pilot skill)
F. Holding out in a fight because of increased armor
Those are the main reasons why I use bombers the most, although it is fun to use other ships every now and then.