Firing an arrow produces the same effect
Haven't found a need for it outside of one dungeon's puzzle
Kills/damages friendly characters, and has a long reuse so is not really practical
I deal more damage than the dragon
ditto
It does? When I'm using my mage/sneak char, firing arrows and missing causes the enemy to investigate the origin of the arrow more often then not.
WW is incredibly useful for running away when one is out of magicka, Saved my hide several times.
Storm Call should be used for bosses, not common mobs. You shouldn't need to use it every 300 seconds, although I will grant you that having a follower makes Storm Call rather frustrating, in not straight up impractical.
The same could also be said of followers. I find it nice to always have some padding.
Same for CoV.