altminer pays every 2 hours if your shares are confirmed, so from beginning it may last about 3 hours and you get first coins

It does not matter if it comes in the brand it is still a GTX 1070 the only difference is have is the factory overclock/boost clock that each brand has along with the cooling solution. In this it depends on what variant in either brands since you did not mentioned it but Asus has better cooling and out of the box overclock/boost clock however it is much more expensive that Palit or Zotac. For me go for the much cheaper ones unless you want to go for aesthetics which is unlikely. Also try too check other brands like Gigabyte, MSI, Galax or EVGA which also has better cooing solution because that is the most needed in a GPU if you will use it for mining.

New Version 0.5.6
reduce cpu load
minor performance improvements


This release contains many internal optimizations. CPU load is lower by about 15%-20% now. The solver contains some minor performance improvements - it's about 2%-2.5% on an 1060 and about 0.2% on faster GPUs. People on overclocked systems may have to readjust their setting since this version 'pushes' the GPUs slightly more.