Air or Water Cooling

[HowToGaming]

For me personally, I would choose Air Cooling, because I'd rather be safe than sorry, but no one cares about my opinion, I want to hear yours!

[Oshino Shinobu]

Water for sure. Even just for the looks of a nicely done loop. 

[Mao_Zedong]

If this is just AIOs for watercooling, they are pretty even. If this includes custom loops, watercooling demolishes any last hope of aircooling.

[ForsakenLive]

One big fat rad is all you need.

There is nothing unsafe about water if you do things correctly.  You can always get nice case fans, controllers, big heatsinks, but the GPUs end up being the noisy part of the bunch (unless you are a GTX 970 owner lol), once you slap a water block on your GPU/s and hook 'em to the loop, suddenly air flow on your case becomes a lot more simpler and you can OC them like crazy without noise or problems.

[Arphenyte]

Air.

[VulsaviiK]

I was going to go watercooling but recently decided to do a 360 on that and go full air cooling. There's a few nice air coolers out there, I got my Cryorig R1 today

[AlRayes_BRN]

Personally I don't like custom loops because youll need to change the water every six months + need to change the pipes from time to time + Water blocks oxdation and so on .. I'd go for a H100i, H105 or a H110