Whats more secure, a mechanical dial or an electronic lock?

When it comes to Safes and their locks which is more secure, an old school mechanical dial or an electronic lock?

From a security standpoint an Electronic Lock is much more secure than a Mechanical Dial Combination lock. The first reason is that Electronic locks offer up to 10Billion different combination configurations where as the older style Mechanical locks can offer only up to 1Million combinations. The second reason is that Electronic locks can be set so that if the wrong combination is entered 5-10 times there will be a 15 minute time delay to prevent a criminal from continually trying to guess your combination. Where on a Mechanical combination lock there is no counter-measures to stop a criminal from sitting there entering combinations until he is successful. These are only a few of the reasons why Electronic locks are more secure than the old Mechanical combination locks.