Honestly, and I might take some heat for this, but I really think in the past (say 10-15 years ago) a knife like the Sebenza had a significantly larger gap in quality on what was say a "high end" production knife than it does now. Now days, there are some amazing quality knives, with the same blade steel, that are less than half the price of any you listed. That's not to say that those knives do not still have a quality difference compared to a $150-200 production knife but I believe that gap is a lot smaller than it used to be. I've enjoyed my striders, sebenza's in the past, and still do, but some of the benchmade, spyderco, ZT, hogue, etc. knives are coming a LOT closer than they were years ago. I also think the quality control is better with the sebenza and hinderer and they do put much more hand work into them that justifies the price, I haven't been impressed with what I've seen from strider in that department, but I only had one.
Not trying to steer you away, I just think that the quality/performance gap is smaller than it used to be. I don't think the Hinderer is worth the price unless you get the LEO/Mil/Fire price. If I had to pick one for everyday casual use the sebenza, probably the 25 because I want both ambi thumb studs and I'd like to check out the new "upgrades". If I thought it might have to endure more abuse probably the Hinderer if I could get the "service" price. I don't feel they are worth $750-850 you see them go for, but many do because they sell.