I am kinda confused with regards to the differences in equipment. I currently have problems choosing which equipment to use.

For example,
1) A bow and a xbow - Bow's deal higher damage and higher critical and also better blast shot damage. But whereas the xbow deal higher DPS and have longer range. So which would be better for PvE & PvP?

2) Thoth and Isis Armour - As i have maxed out the mana regen skill, i think its kinda useless to use thoth. but when i dont use any thoth items, just relying on the mana regen skill is like not sufficient. What can you all advise me?

3) Talon and Bows - I think talons deals pretty good damage and with the shield, my armour would increase. So which do you all recommend?