Favorite brand Peak
Most used Nitecore D10
SureFire for me, my primary EDC light is an L1, which I clip to my pocket. It does what I want it to, it takes a beating, and I know it will work when I need it.
I carry a 6P in a holster attached to my Maxpedition bag, and a G2 in my backpack, both with LED dropins.
I also carry a Photon on my keyring, a red Peak Matterhorn, and a 455nm blue Fenix.