I myself will choose bitcoin 100% because holding bitcoin in a portfolio is more certain than collecting lots of altcoins, my suggestion is that if you have more capital, the difference is also allowed for solid altcoin and only for short-term hold. Prioritize bitcoin in your portfolio because of the bitcoin price has a good quality in its history
Bitcoin investment is always recommended in this market because this is the safest investment for investors and will help you to make a big profit if you have patience. Don't invest in altcoin right now and stay away from this coin this year because of the huge volatility of altcoin that makes a lot of investors lose money. I think investors only care about Bitcoin and no one is interested in altcoins this time.
Thats right we should choose both the bitcoin and the altcoins as well because there are so many coins that make a huge amount of profit for investors. Nowadays my first choice is to invest money in only three coins and they are bitcoin 70 percent, ETH 20 percent, and Ripple 10 percent. So I like to have these three coins in my portfolio.