Dragon breath is an AOE, 188% damage AND disables prayer
Snipe does up to 219% damage and disables prayer
Hurricane does 219& AOE damage
Decimate does 188% or 219% if opponent is using a shield
Quake does 188% AOE damage and drains defence
I don't know; Magic used to be my favourite combat skill, but with countless nerfs and changes it has become my least liked one now. I much prefer melee, with range narrowly beating magic too.