you stuck on the two judges or Ghis?
heres advice for both:
judges
do as Vossler says and fight the leaders. set your gambits to target party leader, and use a potion when needed. it shouldnt be too hard, i had to help a friend do this and his party were level 8 (dont ask).
Ghis
equip your healer with the magicite. take care of the imperials first, you should have enough time to beat them before Ghis reaches you. when he reaches you just attack! leave the healer to do everything else.

i didnt have any special weapons or shields or anything. i believe Balthier had a alter, ashe had a javelin, and as did basch. hope that helps