me myself prefer Mechanical as for the elect there more like idiot lights bye the time they register it to late and as the other two I guess I am just like an old dog ya cant teach new tricks don,t know much about them they look cool and Ive thought about them But the kinda money Im putting into my motor I want to know what going on with It and with mechanical they been proven by NASCAR and NHRA but It all come down to what your going to build