Fenris - modified into space junk/spare parts.
Leviathan - change current weaponry to 9 AAA beams.
Aeolus - 6 MSes, 4 Heavy Flaks and two UltraAAAs instead of two SGreens, two THTs, two AAAs and six flaks.
Hecate - change beams into Stiletto II launchers, limit AF weaponry to about 20 MSes and avaible space spend for two additional hangars with additional 150 fighters (now it would be 300 total).
Colossus - put hangar down, limit weaponry to about 50 MSes and install four huge front beam cannons able to rip out Sathanas in two volleys (one minute fire wait) plus some StilettoII launchers for self-defence.
Aten - modified into space junk/spare parts.
Mentu - low armor and increase AF weaponry (4 Heavy Flaks, 3 AAAs plus some Maxims and MSes).
Typhon - complete change of weaponry to LRFlaks and UltraAAAs only so it could be excellent AF destroyer.
Hatshepsut - strip it down from fighterbays and increase power of beams (3 BFVases and 1 BVas should be fine).
IMHO only Deimos, Sobek and Orion are current GTVA designs with their abilities fully used. All others have got at least one flaw.