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?
It's simply because bitcoin started it all, there might be a lot of coins that has a better qualities and features than bitcoin but you can't ignore the fact that the market pricing will always compared to bitcoin that's why these coins are just speculative investment and bitcoin for me is seen as the dominant currency among crypto.