For sure majority on the response will choose bitcoin and ethereum as nobody will take a risk on choosing those not proven coins or weak coins that has no real product. I will also choose bitcoin and ethereum but why I should limit myself if I can gamble on those have potential projects like Litecoin, Stellar, EOS which are much cheaper than bitcoin and ethereum. Although if you know how to diversify your funds then it will be wiser than putting your money on just 1 crypto.