I work as a firefighter/paramedic and carry a flashlight every day that I use a lot. Being a gadget type of guy at heart I have become a very minor flashlight geek. I have been doing this for over 20 years and over the years I have owned a lot of flashlights. If I heard it was a good one, I probably bought it and carried it for at least awhile.
FWIW: I presently own 4-5 different Surefire flashlights as well as three Surefire Weapons lights: a 6v and a 9v shotgun dedicated forend as well as a rifle foregrip/light (I am too lazy to look up what the name of it is). Anyway the point is that I I have used Surefire lights extrensively.
Now to the point: this is the flashlight I have carried for the last year or so.
https://www.fenix-store.com/product_info.php?cPath=22&products_id=227
I consider it the best thing out there. Everybody that sees it wants one. Out of every flashlight I have ever seen or used, this is my pick.
A quick story that I thought was funny.
I was on the scene of rollover accident, at night, in an area with very little ambiant light. The whole scene had a few rather interesting tidbits.
When the police arrived I started telling them the story and as I spoke I was pointing out things with my flashlight. There were probably 8-9 people standing there listening.
Right in the middle of the report the cop said: "Wait a minute. Where did you get that ****ing flashlight ? Let me see that."