I've got a fenix p3d and a surefire U2 and their outputs are about the same, really.

The surefire has a better throw and wider corona.

The contest of ~60 dollar fenix versus 280 dollar surefire is a pretty clear victory for surefire.

The fenix is more carryable, except for its lack of a pocket clip.

I like the U2 more than the P3d, in general.