Angels
There are 8 (/9) in total and although generally going from highest down to lowest rank, this doesn't mean that also counts as individual power.
The first group are the "Servants of the Council" (Seraphim, Cherubim, Thrones),
then the "Heavenly Rulers" (Dominions, Virtues, Powers)
and lastly the "Heavenly Messengers" (Principalities, Archangel/Guardian)
as well as the Fallen.
°•Seraphim•°
°•Cherubim•°
°•Thrones•°
°•Principalities•°
°•Archangels•°