What endgame weapon is most suitable

[Sevencent]

So after saving up some gold and getting close to 56 I've decided to go purchase my weapon, although I'm unsure as what to get because of all the options and uses.
I'm mainly focusin pve, I want to be able to tank and farm efficiently, which makes me lean toward a aegis (glint, or immortal) but I will also have 2900 armor as it is when I'm 56, do I need that extra 250?

Dragon sword, immortal sword, glint aegis, or immortal aegis. I also don't really know what any of the procs are or what helps kill mobs the best.
After reading the descriptions I learn toward immo sword but I don't know what they do in action
Any advice or comments about any of those weapons will be much appreciated