ohyouknow :
My asus card has zero problems. Most of the issues that they complain are about the poor software in GPU tweak that came with it. Just good to have some context behind many people who complain on reviews. The card is dead silent over my case fans even pushing close to 100%.
On the choices you are deciding I would go with the FTW card since EVGA's customer service is awesome. If I were to do it all over again I would've gotten the FTW since, even with 6 case fans, the hot air being dumped by my ASUS card really causes a noticeable CPU temp raise which I am not particularly fond of.
A lot of factors besides the # of fans will influence CPU temps. That is one thing that should be considered when choosing a GPU.
I have a 3570K clocked at 4.0GHz with a Hyper 212+ in a HAF 912 case. CPU temps have never gone above 60°C and GPU temps ~63° under load (BF3 on Ultra, 3DMark 11, Unigine Heaven, etc all @1920x1080).
Noise has never been a concern of mine. When my fans get loud it means I am gaming for which I use over-the-ear headphones.
If you don't have a setup that is capable of keeping things cool to your liking, go for the FTW or any other 670 with a stock cooler. Basically any 670 will be great, it's all a matter of personal preference.