These would probably be the best, although I'd change 3-4 of them if you asked me on a different day:
1. Zero Tolerance ZT 0640 Emerson
2. Zero Tolerance ZT 0308BLKTS
3. Hinderer Knives XM-18 Skinny Generation 6
4. Lion Steel M5
5. Benchmade Altitude
6. Benchmade Hunt Crooked River
7. Benchmade Sibert Bushcrafter
8. Spyderco Caribbean
9. Spyderco Para Military 2
10. Jesse Hemphill Point Rock
11. Fallkniven F1
12. Casstrom Swedish Forest Knife No. 10
13. Bark River Bravo 1
14. Buck 401 Kalinga 2021 Legacy Collection
15. Cold Steel Magnum Tanto XII
16. Cold Steel Demko AD-10
17. GiantMouse ACE Biblio
18. MKM Maniago Root
19. Kizer Gemini
20. WE Miscreant 3.0
Of all the knives I've owned and own, these would be the ones I'd keep based on use and value to me, but not necessarily my most valuable or "best":
1. Zero Tolerance ZT 0640 Emerson
2. Benchmade Griptilion
3. Benchmade Hunt Crooked River
4. Benchmade Triage
5. Benchmade Bugout
6. Benchmade Hunt Saddle Mountain Skinner
7. Terava Jaakaripuukko 110
8. Spyderco Caribbean
9. Spyderco Police 4
10. Morakniv Kansbol
11. Fallkniven F1
12. Casstrom Swedish Forest Knife No. 10
13. Boker Plus Roundhouse
14. Opinel Traditional #15 Slim
15. Cold Steel American Lawman
16. Cold Steel Demko AD-10
17. GiantMouse ACE Biblio
18. Ontario Knife RAT Model 1
19. Kizer Gemini
20. Kizer Vanguard Mini Sheepdog