I don't know any altcoins that are better than Bitcoin. The question is, better in what? Are they more decentralized? I don't think so. Are they more reliable in the long run, or more secure due to a strong community and high market capitalization? Not really. Are transactions cheaper and faster? Perhaps they are, so that could be an argument.
Bitcoin is strong, the market cap is huge, it's a PoW currency, and it's been #1 since it appeared. That's why I choose Bitcoin over any other altcoin.
It depends on what matter we view. If we want a more stable price, there are stable coins that are better than Bitcoin. Altcoins prices are mostly more volatile than Bitcoin price. So altcoins is a better choice for trading because the prices can change faster. And don't forget that there are altcoins with cheaper transfer fees. But if we want a more recommended coin and trusted coin, Bitcoin is still the best option. No coin is better than Bitcoin if we want to invest in a coin for a long term investment. Well, Bitcoin is number 1 coin but sometimes altcoins can be better for some matters.
Well it depends on perception if in the end it is temporary or short-term trading that we want to achieve then most will go to altcoins because indeed they offer increases and decreases in a large enough nominal but in the end things like this also need to be realized that this does not apply to long-term investment issues.
So that indeed everything has its uniqueness, it's just that still in this case when talking as a whole, it is certain that bitcoin will be far superior to altcoins because after all, saying bitcoin as the king is not just a frill because it is a reality that is supported by the current facts where altcoins are still very dependent and affected by bitcoin so that overall bitcoin is the best but when referring to other parts such as stable problems or referring to quick and short profits but accompanied by greater risk, altcoins can be one of the choices.