I LOVE the "If" books! They are so much fun for a group of friends to answer w/ each other! My friends & I used to do that in college sometimes.
I'm not sure what's meant by "best" vice....if it means "most common" vice, then mine USED TO BE food (for comfort! for anything!), and now.......not sure! I guess I have a hard time feeling satisfied/fulfilled with life sometimes. Don't know if that's a vice, but I have that problem!
Jen