Basically, a lot of people prefer different things.
I use the same gear roughly.
I don't have a PCB
I use tirfing as my shield, because it gives reduction against medium sized opponents, making it more versatile and useable against other monsters as well.
For the armour I use Evil Druid. It just nullifies all the damage from the dark/shadow attacks, as well as prevent you from getting stone cursed or chaos'd (the skill that makes it appear you're taking 1300 damage if you only take like 40 damage). Only downside is that you can't be healed or resurrected.
Some people like to use bathory as well, but that doesn't block some of the annoying skills the monsters use iirc.