Here's my go at this...Most are assumptions though because I haven't had the opportunity to try them all at these tasks. These are my choices based on my current collection and which knife I would choose for each task based on what I know about each knife and how it feels when I hold/use it. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />

Tasks:
1. DF
2. DF/SoD/CT
3. Vex/MPLE/Mora <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
4. BDLE easy
5. Muk/SS4/MPLE/Vex
6. Muk/SS4/MPLE/Vex
7. CT/SoD/S5/RMD
8. DM/S5/Muk/RMD
9. Muk/BDLE
10. Waki/DF/Tram Machete
11. CT/RMD/S5
12. DM/Vex/SS4/S5
13. Added by MM - Zombie control - Waki <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />

I know I didn't pick just one for each task but since I haven't performed these tasks yet with the knives I had to list the knives I felt were most appropriate and that would be my go to knife for each task. I think the best all-around knife would be the S5 and the RMD.

KS JYD #93 "Life's too short..."