Zed build strategy

Zed should always rush 1 of the 2 items. or .

Personally I ALWAYS rush , after of course...

My reasons: I feel like offers much higher early damage (being that requires )

It also helps out so much with out CSing your laning opponent by providing AOE autos. also tiamat is an early item that can be activated to cause damage, as well as more early damage.

Is it just a play style preference? Or is there actual proof that building Bork first is more beneficial? Because I've tried the bork route and my CS and damage output suffers early game because of it.