1070 have more option for sure, with amd you are stuck there mining ETH,if ethereum sink what you will do with amd gpu? nothing, there is only monero which is not profitable, other algo are not optimized or the optimization is private
Care to elaborate on that part ?
hasn't AMD been the best brand overall for mining over the past years, and not just for ETH (I'm thinking aboute BTC of course, Litecoin, BOINC etc... ) ?