No one will be able to pass through the capacity of Bitcoin as an altcoin. To date there is indeed ever say a price that exceeds BTC against USDT. But that's not the size of a coin in order to beat Bitcoins from all sides. Judging from all sides and strength, Bitcoin has no comparison to date. Security, speed, price calculations until confidentiality and privacy are all already in the technology of Bitcoin.
Maybe later it is also if there is a digital asset that can rival the BTC I think will have difficulty because the age and experience of this BTC is already very complete.