If you could only keep one.

[polyhexamethyl]

Military, no questions asked!
if i could choose, in that order: Rex45 S110V Cruwear S30V

[Hopweaver]

This is easy: Ti/CF S90V Military

[wrdwrght]

Although among the least numerous models in my collection, and in spite of this model having some characteristics I don’t favor, I would now choose a Millie. Its ergos are so compelling, and I can always make it behave like a little knife...

Of the two versions I now have, I’ll go with my 204P as I have no experience yet with my Rex45.

I must say this choice surprises me, given my affection for Manix2s and PM2s, not to forget one-offs like my Police4, Calypso sprint, and Shaman.

Glad this choice is only pretend. It is only pretend, right?

[rwasham]

Paramilitary...hands down my most loved and used Spyderco. Kind of a fanboy answer, but it's just a great knife.

[SaltSerious]

At this point in time I would go with the Caribbean PE. Newest member to the Salt Series. Would be leaving behind my beloved Pacific Salt SE green dyed, Manix 2 LW, PM2, Enduras.
Anticipating the XL version to give the LC200N serrations a go.

[Tims]

Endura 4 PE, black frn. The bloody handle doesn’t even fit my hand but everything else about it is as close to perfect as I’ve found.