I think it all depends on the strategy you choose. For example, if you choose the strategy of the game on the market in the short term, then it was logical to choose the growing coins and pour their assets into them to make money on short-term growth. Moreover, you can still look at the growth of a particular coin. For example, if you see that LTC has the ability to grow more than ETH, then it would be logical to pour ETH into LTC, wait for growth, sell and then buy the next crypto asset. As for long-term strategy, then of course it is better to buy top-end Altcoins and BTC, since for at least 2 years they will give a good profit.