well if you were talking about one ship that you wanted to use... ide have to say the SPIDER!!! First ill way what my spider uses 1. Ion Drive 2. Quantum Reactor 3. Beam Array atm 4. Space Mines 5. 2 close Combat, energy scanner, tunnel tunner, getaway pack 6. Double Brick I would say this build costs around 100-120k you could add antideah if you want (not necessary)(costs 250k) and the reason i say it is most usful is because you could use beam array to base, flechette for turreting/center killing, and shrdder to lame ppl with rockets if you wanted to you could change spacemines to falcon missile or string of pearls!!! since you could use this ship for anything and still own with it... it's why i think it's most useful I know this because this is what BobDole69 does and it's been working great for him !!!