The non-blue build considered is pretty weak imo. Why buy IE if you're not going to buy any crit chance with it? Why BoRK and Bloodthirster both? You're overpaying for sustain, which is a stat this comparison doesn't really value. Substitute out the BT for a Shiv or PD, then we're talking. Don't like buying an attack speed item when you already have BoRK? Buy Atma's instead, hell, you'll have armor just like the Blue Ez build then! Sure, you *could* sub out the BoRK for BT, but BoRK is a lot better on Ez than most people give it credit (same reason why Blue Ez is decent - procs apply on Q).
Against a real ADC build, I think it'd be pretty obvious that blue's damage doesn't keep up.