Litecoin is faster, monero is more private, ETH has smart contracts and there are much more altcoin with much more features, even Bitcoin Cash is faster than Bitcoin, but BTC keeps rising much faster.
Don't you think it's just because of the name?
Well bitcoin indeed was the very first digital coin ever named and created before all other coins, but bitcoin have struggled for so long and even skyrocketed its price. Compared to other coins, bitcoin is widely accepted anywhere.