Best Power cable around/prefer under $300....


I’m looking for the best Power Cable for a Parasound A21 amp.
I would like to stay below $300 because I feel any aftermarket cable would be a huge upgrade compared to stock.I would really like to hear what you all think! 
I am considering the following,

Shunyata Research Venom HC V2 Power Cable. $298
AUDIOQUEST - NRG-4 15A IEC Power Cable. $180
AUDIOQUEST - Monsoon Power Cable $329 
NORDOST - Blue Heaven Power Cable $219
NORDOST - Red Dawn LS Power Cord $384
AUDIENCE FORTE F3 POWERCHORD - POWER CORD $143.
matt00
A Signal Cable Silver ( $170 ) replaced my Shunyata Python Helix on my Hydra 6
After communicating with several Audiogon members I decided to contact Audio Evny and I ordered a 6' Mega 3 power cord with 6 conductors.
I had to wait about three weeks for it to be made but I can absolutely say that it was worth the wait. Very lightweight, flexible, and well constructed, visually looks great.
After four days on my Audiodharma cable cooker, I installed it on my Allnic T-1500 300B Integrated tube amp. Wow! sounds great, now I understand the high praise that I was reading in the forms. I highly recommend the power cable.