Fighting/Walking in Thirdperson
Aiming/Shooting in Firstperson, mostly
button for viewswitching is on my mouse so i can switch pretty fast and combine both so i don´t have tunnelvision most of the time and can still aim.
only when i shoot targets near me i use thirdperson, though i used to be always in firstperson...but because i need to defend against teammates who can only swing their big swords without thinking when i play melee i switch to thirdperson nowadays.
zooming only for searching possible targets...it´s easier to see armorlevel, etc. with zoom as Tears said accuracy suffers
edit: finally one who try archery before saying its easy mode...though everything is easy when you can play...