BTW, three flashlights seems excessive. One good penlight and a back-up micro-light (LED) should be more than effective.
Recognizing that I'm not entirely rational on the subject, I have the Preon 2 for work, the iTP 1xAAA as my backup flashlight, and the 1xAAA Fenix E01 as either the backup to the iTP, another light I can give away, or the world's most robust battery holder, take your pick.