All I can say that bitcoin has no competition. Crypto being compete into bitcoin but still the best is bitcoin. Nowadays, bitcoin is leading in the market because of its price that no other can compete of because of its popularity and demand. Bitcoin is being on top nowadays...
Bitcoin is just the first one , the trusted one but that doesn't mean it's the best because there are actually many coins are better than Bitcoin.
But i think it will take time to replace Bitcoin , like at least 10-20 years.