KingBlough

I need help deciding how to use my feathers. I have enough to get any one unit to 5* and between my 4* and 3* units, I have most characters. My 5* units currently consist of: Sannaki, Hector, Effie, Jaffar, Martin, Roy, Leo, Xander(spring edition :() Camilla, Sheena, Kain, Abel, Lucious, Charlotte, and Lachesis. Please take the units I have at 5 into consideration and give me some advice on who to promote!