Taking into account verification, deposits / withdrawals, security, volume, fees, and service,
Which exchange can I register an account to complete verification the most convenient, transfer btc to fiat or transfer fiat to btc the maximum efficiency, then withdralal the fastest.
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Where are you located? If you are in the same area as the bank that an exchange uses, it will speed things up significantly.
Wire transfers from your bank to an exchange take longer than an other system called SEPA that is only available in the EU. If you are located in the EU and you choose an exchange also located in the EU then you can transfer money faster.