My preferences for electrified locking hardware are as follows (listed in order of preference) :
1- Electrified mortise lock (single doors)
2- Exit device with electrified trim (single or pairs of doors)
3- Exit device with electric latch retraction (single or pairs of doors)
4- Electric strike (single doors)
5- Surface-mounted electromagnetic lock (single or pairs of doors)
6- Shear-mounted electromagnetic lock (single or pairs of doors)
7- Electric bolts (single or pairs of doors)
My first preference is always to use an electrified lockset. I have found these to provide the highest level of security and to be the most reliable over time. I feel that adding an electric strike introduces another point of failure into the door's locking system and I only specify them in special cases, such as when a door has an automatic opener.
I feel that the proper installation of electrified locking hardware is a specialty in itself and beyond the skill set of most security/surveillance systems installers. In many cases, the wrong type of electric hardware is used on doors simply because the installer is ignorant of the full range of other options. For example, electromagnetic locks are overused by many integrators simply because they may be the only type of hardware that they feel comfortable installing.
I recommend that integrators who don't have qualified hardware installers on staff sub-contract that portion of the work to a qualified locksmith or electric hardware installation company.