I am a casual fan of the original NCIS. It is like Gunsmoke for my generation. Gibbs and his trusty companions always do what is right and get the job done.
Orgins suprised me. I figured it was going to be like the other spin-off, just a watered-down version of the orignal. But Orgins seems to be of a higher quality. It reminds me of a movie or the early seasons of Miami Vice. Very serious and cinematic. The actors playing young Franks and Gibbs are great, especially Franks. Because of its early 1990s settings, it avoids the silly trends seen in many shows today.
Gibbs and most the other agents carry SIG-Sauer. Franks carries what appears to be a Model 19 with target grips in a shoulder holster. It works well with the boots, cigarettes, and jeans!