Power Cable Audioquest Dragon vs Isotek EVO3 Ascension

I have three pieces - Aurender N10, Benchmark DAC3 and Lab12 Intergre4 Toroid amp.  
 

I have 3 decent power cords - Signal MagicPower, Transparent Powerlink and Nordost Purple

Which device is most sensitive, or would benefit most, from the best cable?

And which cable would you put where?

@teammccalla "Which device is most sensitive, or would benefit most, from the best cable?” 

you may ask your gear manufacturer if stock cable is limiting/degrading performance of their product.. you can basically sue them if original cable is under-designed. 

replacing original cable w/ ? can get you better or worse.. beware of damaging IEC device connector by not appropriate pressure, finishing, plating..

@teammccalla in my experience best power cord on integrated amp then second best on dac. I’m not familiar with any of your power cables though.