There is no perfect coin and it is unlikely to ever appear. Cryptocurrency performs a lot of useful and diverse functions and they cannot be combined in one coin. This is especially true of tokens, where the diversity is very noticeable. Since the cryptocurrency has a decentralized nature of its existence, thousands of cryptocurrency varieties will constantly appear and disappear on the market. This is a good process of its improvement.
It is unlikely that any cryptocurrency can grow in price to the level of Bitcoin price. It is most likely that Bitcoin will ever be overthrown by a cryptocurrency leader only when he himself falls in price and level of capitalization.