Looking over Quickbeam's throw and output charts, I still think the TL-3 LED would be a better light for walking. The TL-2 LED has 10% more throw according to his measurements, but approximately 50% less overall output. The TL-2 will reach a very small bit farther, but have a much smaller hot spot. When I'm out walking or hiking after dark, I'd rather have a light that puts out more overall light with a larger hot spot, even if I had to sacrifice a little throw. I guess some people may prefer the opposite.
I don't have a TL-2 LED to compare with my TL-3 LED, but compared to my other 1 watt LED's (ARC LSH-P, Madmax, KL1, LED Corp 3-D Mag drop-in), only the Mag with its reflector and adjustable beam could out throw the TL-3 LED (with a tiny hot spot on the Mag).
Keep in mind too, that my TL-3 is the current release without an adjustable beam. The TL-3 and TL-2 no longer have adjustable beams, while the earlier models tested by Quickbeam did have adjustable beams. Unless you can find an earlier model, you're stuck with the non-adjustable beam SL gives you. Quickbeam's measurements may not accurately reflect the throw of the current models since they are no longer adjustable.
I don't think a person could go wrong with a TL-2 or TL-3 LED, both seem to be great lights. It would be nice to see an updated comparison of the two lights with the fixed, non-adjustable bezels though.
-Keith