BTC>ETH>XRP
Bitcoin is the king of Crypto, it is the basis of all crypto existence, so it is the best, this should be undisputed.
Ethereum is heavily used in ICO's ERC20 token, which is the most used crypto except Bitcoin, maybe even more than Bitcoin.
XRP has abandoned the decentralization, so some people don't like it, but this does not affect its potential. It is currently in the second place of crypto, but its influence is still not comparable with Ethereum.