This is just my option

Saffron
Is good in dodge, block and resilence so its useful in Quest boss and heroic realm.
Because those Quest boss and heroic realm troops has less break and dodge.
in pvp saffron being block so no skill attack and lost shield wall.

Ahmose
normal in Quest boss and heroic realm.
But its good for pvp because of more break so its always have greather rampart with 5% mdef boost.

in summary you need both :P
Saffron for Quest boss and heroic realm.
Ahmose for pvp

here is sample formation with ahmose for GW. you will kill more player in GW compare to other formation.

Adam, Maria, Ahmose
hero,Aphrodite, Free
Free, Free, Free
Sub your call