I've noticed many people using the flex-a-lite 220 fans. While it looks to be a good buy, the permacool fan also looks to be a good candidate. The permacool flows close to same while using less amps and would seem lighter of the two, considering its a single fan while the 220 is dual.
The fan of choice will be going on the griffin 25272 radiator.

Which would you choose? Any opinions will be much appreciated.

Flex-alite 220 stats:

Fan Quantity: Dual
Fan Diameter (in): 12.000 in.
Height (in): 15.500 in.
Width (in): 26.250 in.
Thickness (in): 2.625 in.
Maximum Fan CFM: 2,500 cfm
Number of Blades: 10 blades per fan
Maximum Fan RPM: 2,000 rpm
Amp Draw: 19.50 amps

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Permacool 19126 stats:

Fan Quantity: Single
Fan Diameter (in): 16.000 in.
Height (in): 17.000 in.
Width (in): 16.000 in.
Thickness (in): 3.250 in.
Maximum Fan CFM: 2,100 cfm
Number of Blades: 10 blades
Maximum Fan RPM: 2,000 rpm
Amp Draw: 8.90 amps