Smith vs Oakley anti fog system

Hi,

I would like to know your opinion on what is better between the Smith's turbo fan anti fog system and the Oakley's inferno anti fog system.

Will help me to decide between the Smith I/OX turbo fan and the Oakley Line Makes net Inferno.

Cheers

I have a pair of Smiths IO ..without a fan and have never had any trouble with them fogging

The fan part of the turbo fan doesn't seem to get very good reviews. Never tired but sounds like an unnecessary gimmick and extra weight when normal anti fog lenses work well. 350$ would prefer to have 2 pairs of good goggles as I doubt the fan clears up a big face plant.