Quote from: przester28 on November 14, 2017, 08:43:16 PM

Guys what should I take to get best roi ?

zotac 1060 mini 6gb for 332 USD
palit geforce 6 gb storm for 324 USD
or
zotac 1060 3 gb for 239 USD
gigabyte 1060 3gb windforce (dual fan) for 249 USD
palit geforce 3 gb stormx for 250 USD

which one are the best to overclock ?

Cheaper is always better - the differences between manugacturers seems to be minimal.
The biggest difference is due to the memory being Samsung or Micron or Hynix.
See here:
https://www.pyramidreviews.com/cryptocorner/mining-gpu-speed-and-price-comparison/ethereum-mining-speed-gpu-comparison-for-gtx1060-3gb/