Base damage of the bow and destruction staff are all set to 1335 at legendary when at 160 cp gear, which is the same damage as a sword and shield and restoration staff. However, when a player uses dual wield or two handed as a style the base damage that a player can do is increased by 200+ damage. Staff and Bow base damage should not be as low as a player using a 1 handed weapon and shield but also should not be as high as someone using dual wield or two handed styles. I find that buffing Bow and Staff base damage to 1450 would be a great middle point between the melee damage and defensive/healing type of play.
Passives that need updating for the Bow and Staff.
Staff passive "The Penetrating Magic" needs to be updated to state: Your damaging attack ignore 10% of your enemies magika resistance. T
Bow passive "Accuracy" needs to be updated to "Increases your Physical Penetration rating by 2628.
The passive changes would give these two weapon type a bit more in total damage out in content and may actually get more players to use at least Bows as a range option.
I personally like range style of play but the issue I run into is that range attacks you need to be more accurate to hit targets and if you are not you take a bigger damage loss than someone using a 2h or DW but at the same time the risk of being hit harder is not there but the damage loss is. I find getting a slight bump in damage is much needed for these two weapon styles.