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?
I think virtual currencies are growing very fast in the market in my country but to know which coins are the strongest, there are indeed a lot of people who will choose Bitcoin. In the market today, this currency is at the forefront and most influential in comparison with other developing currencies.