I own both SureFire and Wolfeyes flashlights.
The finish and overall build quality of SureFire remains unbeaten. A very solid, balanced feel to them. If you buy a SureFire, you might as well have it until you die. If you can get a Surefire forwarded without shipping costs... I would gladly accept that offer. An L1 Lumamax is, when you're into LED-lights, an excellent choice. I runs for 16 hours on one CR123A on the low setting, which is in 9 out of 10 cases bright enough. Need really a lot of light? Switch over to the HIGH-setting then....
With any Wolf Eyes, you get the benefit of easy Lego-ing and the ability to take 18XXX-cells. Surefire will only accept RCR16340 or 17500 or 17670. I've got an M90 rattlesnake, and this is one of my favorite lights. Because it accepts 18650s, it has a decent runtime, OR can be extremely bright, using one of the extenders and a LF 13V 700 Lumen bulb.
In the handling, this M90 however, seems to have an enormous heavy head. Here the Surefire C3 centurion, my other favorite, excels. It has all the right balance, and just feels perfectly adapted to your hands.
What I would take in your case, depends on the use you're planning. Use it very often? Then you'll want some kind of rechargeable option, here Wolf Eyes rules. Only use a SureFire L1 LumaMax occasionaly? Then the battery will last for months and months and months.... and will still be operational after 10 years (ideally suited for emergency situations!)
So maybe the old "one is none, two is one" goes for this situation as well...
The Wolf eyes light you mentioned seems to be very good (however, find out if it can be powered by an 18650 cell, Wolf Eyes calls it a "168" cell or something like that).
Well, I found out for you already: it CAN be powered by one LRB-168A cell!
That means, lots of fun with only one 18650 battery (my advise is to buy AW cells, they are really good).
And, if you want to find out about why SureFire is "the finest illumination tool in the world" you'll simply have to buy one.... already having the Wolf Eyes Fox, you may be wanting a SureFire incan light. Here, Surefire really rules!!
I can only urge you to buy a C3 Centurion, and just leave the P90 standard lamp in place, it's excellent!
When ordering AW batteries, make sure to add 2X (or 4X) a 17500 in case you buy this light :twothumbs
I am sure, with this choice you get the best of both worlds....
Timmo.