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
"Splurge and get the audioquest thunder...." I replaced six AQ Hurricanes with Clarity Audio Vortex power cords after comparing them in my system. I've listened to Shunyata Alpha & Sigma, Wireworld Platinum, and AQ Dragon power cords in my system. There are no absolutes in Audio, but I prefer the Vortex power cords over everything I've heard in my system...detailed and very open soundstage.
One of our audio club members tested several power cables and he recommended the Shunyata Research Venom HC V2 Power Cables. I have them for my Marantz PM-KI and SA-KI RUBY integrated amplifier an SACD Dac. I found a special package deal of a 3 cable bundle.
Might consider Audio Art Cables pcs, a couple models within your price range; and looks like there presently is a sale. I’ve been pleased with them in my systems.