Bitcoin on the rise again!

Bitcoin is on the rapid recovery from weekend price fall. 1BTC was sold for $14,000 over the weekend and the price started increasing gradually late on sunday.

I predict it will be up to $20,000 before this weekend and it will drop back to$16k to $17k next weekend.

Ethereum on the other hand is yet to reach $500. My question is which is better to hold in larger quantity between BTC & ETH for future value?