The development trend is clearly towards electronic locks, as they offer a high level of convenience. (No key loss, code can be changed, no key needs to be carried)
It is important to make sure that the electronics have an emergency key or emergency power supply in case the battery replacement has been forgotten.
The fingerscan lock has the advantage like an electronic lock that no key is needed and there is no code to remember. The disadvantage is that it can only be opened by a person, even in an emergency the key or password cannot be passed on.
A key-lock is recommended if you do not want to remember a code. Another advantage is that the code cannot be spied out. You never have to think about the battery, no electronics can break. Disadvantage: You always have to have the key with you. Number of keys limits the number of users. Possibility of key loss.