Bitcoin Cash while derided by the Bitcoin Core camp as a, "pump & dump scam" actually has a lot of the original Bitcoin people behind it and undeniably has the goal of adhering to the original vision of economic freedom though cheap fast P2P cash for everyone.
Ethereum has the best fundamentals right now in terms of user adoption. It's transaction volume in terms of number of transactions is ahead of everything else out there. ETH has some technical risks though. It has uncapped coin issuance that is currently quite high ~14% and they want to switch from the proven proof of work mechanism to proof of stake and it isn't clear that will be successful.
Beyond that Bitcoin Core is crippled and everything else has pretty low adoption though some alts like Monero look like they might find a niche in dark markets where strong privacy guarantees are important.