I personally think the T2 is the gem of the lot. I like Inova's very much and have a T1, two T2's, a T3 and Three X5s. All have been spectacular lights for me.
The T2's are just great general purpose lights for me. They really do run for over five hours in full regulation and put out plenty of light. A ceiling bounce does a nice job of providing a level of area lighting.
Now they are not super bright like a Surefire L4 or L2 or anything but they seem to put out a solid 30 - 35 lumens by my eyeball.
Just great lights overall.
Chris