interconnects vs speaker cables vs power cords - which make the biggest difference?


Like the subject line says, I am curious what others think in terms of whether interconnects, speaker cable or power cords make the biggest difference when it comes to noticeable sound improvements, or are they all equally important?  I am thinking of upgrading them all and am trying to decide how to allocate spending.  Thanks in advance.
ccandte
Jmcgrogan2 nails it...results will vary and all expectations are different.  It's audio alchemy and everyone is cooking a different recipe!
An advice from my heart:
If you take the chance to audition the following, then you know.

Physic Harmonic "eco" power cables & speaker cables
http://cablesilk.simplesite.com/432375948
handmade by Andreas Pollakis

He gives 30 day money back unconditionally if you don’t like them.
You can reach him on Facebook, 
or by his email : 
vmixael@yahoo.com

The price is a joke!
Tell him George Charopoulos sent you.

Happy Listening
I'm an expert on the subject..

I've done a complete system change " once"
and I'm at lest 30 miles away from person with question.........lol


so: my "absolute" answer
1) power cables & outlets
2) interconnects
3) speaker cables

there seems to be a relative agreement?
Surprisingly 
jeff

My current system weighs a total of 12 ounces. Battery power, so no power cords, no AC power, no AC ground, no interconnects, no digital cable, no speaker cables. Also, no transformers and no fuses. But very low distortion and gobs of air.