ethereum vs bitcoin

What percentage of your total crypto, to include other cryptos other than bitcoin and ethereum, do you recommend allocating for Bitcoin and Ethereum? What is your rationale for holding ethereum if you agree in principle that bitcoin's price will reach a million dollars? What do you think will the effect of bitcoin halving for bitcoin and ethereum prices? Except for the first halving the other times there was an immediate period of the price falling down. Do you think that is going to happen to what extent of the bitcoin price?