While he isn't my absolute favorite SE (82 style SE is my favorite), CS SE is certainly my second favorite, for a few reasons-

-He is practically 1/1 for the Resolute design:

Basically, as you all know, Resolute is pretty kick ass, and whats better then our favorite Ninja in the manner of Resolute? Not only is he a Reso version, BUT he is the only Resolute figure to date (with the exception of maybe CC) that is 1/1 screen accurate (save for the sword).

-The figure itself is a well designed, well articulated figure:

Resolute SE not only comes packed with accessories and gear, but he has one of the highest ranges of motion, thus making him a good source for parts and custom fodder as well. This is one of the handfull of figures that can properly shoulder a full size rifle. Plus his paint apps are amazingly accurate for a production figure.

-It's a true modern, Snake Eyes!

Dont get me wrong, I love the original designs (mainly V1 and V2) but I long for realistic, modern updates that dont involve accelerator suits. And this is just that.

All in all Im a huge sucker for the Resolute line, and while not officially a Resolute figure, he clearly is.

I got my first one months ago from asia for 16, then last week my girlfriend and I found one in walmart for 5 bucks (stashed behind some other toys, mind you). And I plan on picking up another for parts.