Favorite in what regard?
Coolest design: Cool Fall SPY005/Lumencraft Gatlight V.3
Brightest Microlight: Modamag Ti Draco/Drake
Sharpest: Mr. Bulk Dragon
Brightest: Mad Maxabeam Mag623
Best inexpensive AAA: Fenix LOD CE
Best Tactical EDC: Novatac 120P/HDS EDC60
Yeah...I was bitten by the flashlight bug. If someone had ever told me 5 years ago that I'd have a large collection of expensive flashlights...I'd have thought they were nuts. But, it happened.
If you want to look into the very best and brightest flashlights available, try candlepowerforums.com or flashlight-forums.com. However, be forewarned...flashlight addiction can be a horrible and costly malady. I actually started avoiding the above forums as of about 2 years ago, because it really was getting out of hand. So, my above suggestions are based on what I knew 2 years ago. Obviously, opinions will vary.
FWIW, my overall favorite go-anywhere-do-everything flashlight is the Novatac 120P, and my favorite 24/7 EDC flashlight is the Ti Drake.
Tim