- Strider SmF
- Hinderer XM-18 (difficult to find for me

)
- Chris Reeve Umnumzaan
I have the Umnumzaan and the SmF.
The SmF has a big handle. It's big in the pocket and big in your hand. If you have a big hand, it has a decent grip. Has a few hot-spots to the ergos, but it feels great when wearing gloves.:thumbup:
The Umnumzaan is slim in the pocket---a true joy to carry. The blade is 0.140" thick, which is plenty for strength. The pivot is awesomely strong, perhaps more than the SmF; either one has a tough pivot.
The clip on the Umnumzaan is nicer than the SmF as far as not wearing on your pants/drawing it from the pocket. The SmF will NOT fall out of your pocket, no matter what gymnastic moves you do. That said, the Umnumzaan Hasn't come close to falling out either.
The Umnumzaan slices quite a bit better than the SmF, due to blade geometry more than the stock thickess.
They're both great, but for a hard-use knife I'd give the nod to getting the XM-18 if you can track one down, based on what I've seen in comparison pics and reviews.
Between the SmF and Umnumzaan, the SmF will do better at chopping and prying, while the Umnumzaan will out-cut it; the Umnumzaan has a slight bit more cutting edge as well.
You are unlikely to break either one though.
If you'll carry more than use, then the Umnumzaan would win hands down, even over the Xm-18 likely, due to how easy it carries.