1-Fighter vs Fighter (although I hate guys with lots of missiles)
2-Fighter vs Bomber
3-Bomber vs GB
4-GB vs Fighter & Bomber (specially if they have many missiles, I "return" the favour with GB missiles.
5-and finally BC vs BC/Cruiser/DS. I only use my BC against lone Capwhores running BC/Cruiser/DS in New York. Unbeated so far :cool: