Go with the Sig Kilo. Better warranty, same compact size as the Leica, but unlike the Leica, the Sig Sauer can range through rain, snow, and fog due to its dual target priority modes. I have the Leica 1600 CRF and although I love it on nice clear days, it is completely useless with any sort of precipitation or fog.
Sig Sauer is actually coming out with a Kilo 2400 this fall. Supposed to be the same compact size, have updated ballistics software identical to the G7 rangefinder, but still come in at half the price of the G7. I am holding on to my pennies for its release. When I get one, I will either sell my Leica or hand it down to my son.