Depending on the situation... Well since no situation is stated im just gonna go with the Missle Boat assuming I have a large stash of adv. missles, Torps, Heavy Rockets hidden out on some secret asteroid base somewhere... I would use my cowardly tactic of sit back, lock on fire lock on fire lock on fire run away run away turn around lock on fire lock on fire run away turn around lock on fire..
till they are all dead
If no vast amounts of missles I would get a TIE Defender..
If not enough Cred's for either I would design my own ship which would be composed of a TIE Advanced Engine section, 3 X-wing wings, and a TIE fighter like Cockpit with large amounts of the non-see through area replaced with see-through stuff.. with medium lasers on on the wings with the lasers on a powered swivel mount linked to a HUD in my helmet.
MY DESIGNED PROBLY STUPID FIGHTER WEAPONS-
3 Med star fighter Lasers
1 Heavyish starfighter laser
1 Heavyish Ion cannon * i like to steal stuff...*
1 concussion missle launcher * 18 missles*
1 Heavy Rocket launcher * 8 rockets*
Since I have so many weapons I would have it rigged so I could selectively power stuff down to put energy to better areas..
I would also have a SLAM system and try to get some kick ass engines so i can out run most anything.