I don't own a Strider. Actually, I am a very biased owner of four RSK Mkx's, but lets look at the numbers ...

Looking at the Striders listed on knifecenter.com (KC) AND buckknives.com (BK) I picked the Strider 880SP model and fullsize RSK Mk1 for comparison (drop point, plain edge folder, near 4" blade).

Benefits of the RSK Mk1 versus the Strider 880SP:
>>Lighter: 3.82 oz. vs either 5.75 oz (KC) or 7.3 oz (BK) - not sure why the same model list different weights. I REALLY prefer the lightest knife I can carry.
>>S30V blade vs. either ATS-34 (KC) or 154CM (BK)
>>Axis lock vs. Liner lock
>>A portion of the RSK Mk1 sale goes to support equipped.org - a not-for-profit organization dedicated to saving lives

Other Facts RSK Mk1 versus. Strider 880SP that I think are fairly equal:
>>Blade Length: 3.44" vs. 3.88"
>>Closed Length: 4.62" vs. 5.38
>>Handle Material: Noryl GTX vs. G10
>>$115 vs. $125
I couldn't find the blade width for the Strider.

Benefits of the Strider 880SP versus the RSK Mk1:
>>Ummmm, I like the name "Strider" .... but then again, "Ritter" is a nice name too <img src="/images/graemlins/grin.gif" alt="" />
>>Am I missing anything?

From this it seems the RSK Mk1 is a clear winner, but then again ... I AM biased. I really REALLY like my Ritter knives, otherwise I wouldn't have bought the second one, or the third one, or the fourth one.