Best ICO of 2017 was Electroneum, hands down. It seems like dumpers have already dumped most of their coins and the price is steady at more than 8 times the ICO price. And their flagship mobile mining experience has not even been released yet (will be released early next year, so get in while you can).

The second best (though the ICO is running over into 2018) is Envion - mobile mining rigs placed directly at cheap energy sources.