Bitcoin is the Cryptocurrency that's more valuable and has the potential for appreciation for the following reasons.
1) It is the widely accepted asset in the investing community. It is the only coin with the highest attention from lots of investors.
2) Bitcoin is one of the most stable cryptocurrencies, with the longest history. According to Steve Ehrlich, CEO and co-founder at Voyager Digital, "Bitcoin is a scarce digital currency and store of value. While still volatile, it tends to be one of the most stable cryptocurrencies, with the longest history, and has been the most consistent and best performing investment asset year after year for the last 10 years."
3) There's a limit in the global supply of Bitcoin. For this reason many investors consider it very valuable.