I don't have and L2T but I have an L2P and the newer X5 with the Nichia CS LED's, I also keep a P1 on my keychain.
All summer long I toted the X5 and it is very useful for a flood of light, not so much throw but in medium to short ranges it puts out a very useful flood or wall of light. The L2P on the other hand has a nice tight hotspot but not as much sidespill. The Inova X5 has a bluish purple tint towards the edges, the L2P is whiter than alter linen.
The P1 I have found to be a handy tool on my keychain. Because of how handy it is it gets used more than most other lights I may carry.
The X5 has been a useful companion to my Airweight S&W all summer, I have used it quite a bit over the summer and it is still on the same set of batteries. Indoors the X5 excells, outdoors it is not very useful past 25 feet or so, but inside that 25 feet watch out!
Personally I have a great respect for my X5, it goes along with me everyday, the L2P while it offers a nice throw it is long and skinny and offers little sidespill. Personally while throw is nice to be able to reach out far, I find it sidespill to be much more useful in an EDC and for that the X5 can't be beat.