This is always so hard, but I'd definitely shoot for 15-17 songs, ala AIC's Nothing Safe Best of the Box CD:
Here goes, in no particular order:
1. My Own Prison
2. Unforgiven
3. Illusion
4. WTLF
5. Say I
6. Faceless Man
7. What If
8. Torn
9. Ode
10. One
11. WGMB
12. WATY
13. Hide
14. Pity for a Dime
15. Beautiful
Bonus Disc -- B-sides
TWIMC
ITTE
I'm 18
Bound & Tied