I think no altcoin can beat bitcoin. Because we know until now bitcoin remains the number one and price is far above altcoin. Perhaps this is because many companies or investors are investing in it. Nowadays name of bitcoin has become popular among people and many are interested for join in bitcoin world
The value can not make Bitcoin become the best cryptocurrency. You have to know some shit altcoins have higher price than Bitcoin, but the volume trading and market cap are lower than Bitcoin so much. The liquidty of Bitcoin is better than any altcoin, so, at current, I think no altcoin can better than Bitcoin, but in the future, some altcoins can beat Bitcoin.