Had a small insingo Sebenza. Sold it to my buddy Droppoint. Now he's also got an SNG coyote brown, flamed ti, striped blade. Here are the categories I'd vote for which one over:
Unique design: SNG
Practicality/would use more: Sebenza
Feel in hand/different ways to manipulate: SNG
Durability: tie
Feels stronger: Sebenza
Basically, My vote would be for the small sebenza because,
as cool as the SNG is, 2/3rds of it's length is handle, and only 1/3rd is actual cutting edge;
I have small hands, small folder = better for me;
the flamed and striped pattern on the SNG is too nice looking for me so I'd want to keep it nice and never use it;
certain G10 like on the SNG is really dry and grippy feeling, not smooth-feeling and still textured like my Benchmade 710;
titanium handles feel nicer, they are beadblasted yet smooth to the touch;
Clip is strong, but not too tight like the SNG;
simpler design = less to feel bad about using and messing up the looks;
built strong yet opens super fast and smooth, whereas the SNG requires a harder flick (stronger detent on the SNG);
My top reason to choose Sebenza over SNG has to be it's design being so sheeple friendly. When you combine that "boring" of looks with that small size, you won't get a single problem with using it in public. Overall a better user, you'll be less afraid to use it and less worried about messing up the finishes. The SNG is way too designed and decorated to not be used without wanting to take care of it, and it is clearly the more "scary" looking of the two. The sebenza is the ideal folder that you can still beat the hell out of, keep looking nice, and keep any onlookers from being concerned. You can't beat a folder that you can use as a dress knife as well as a beater.