Msi gtx 970 gaming x vs zotac gtxb1060 amp edition

Founder edition and all other cards with similar cooling design (single fan, blowing air out of the case):
Pros: If your PC case has not so good air flow, this is the better pick.
Cons: The graphic card is not well cooled and it is noisy as hell. For most cases, this is not the best to choose.

Custom solution (multiple fans, blowing air inside the case):
Pros: the graphic card is better cooled and not that noisy. This is the best solution for most cases.
Cons: if the case air flow is bad, this solution will warm the other components more.