Hello guys! which site is the best for using bitcoin.

But i have account in two sites. But i don't know which site is the best. which site you like most. But most time i think Coinbase is the best. Because it has three coins of addresses. Such as Bitcoin, Ethereum and litecoin.

Both are equally bad. One side where blockchain wallets get hacked easily, coinbase blocks wallets until required proof is not submitted. It's risky to use both while xapo is better in that case as their support does respond and they don't block accounts without any reason like coinbase. Blockchain, with 2FA, also can be bad as sometimes the users aren't able to access their wallets even with a valid code.