craftgrrl | i need advice about a sweater vest

i'm making a sweater vest to weat in seattle next week, and i need some input...

ok, so i'm making a sweater vest to wear to seattle. it's white with lavendar on the edges. now, i'm done with 9 1/2 inches of the 16 inches needed for the back, and i'm getting damn tired of straight stockinette, and i know if i make the front exactly like the back, i'll never finish this thing (crafting ADD, remember?)...sooooooo, a little poll...

how should i make the front of the vest
A. exactly like the back - use some self-discipline & just finish it
B. argyle - lavender & light green
C. argyle - lavender & pale pink
D. fair isle of my own design - lavender & light green
E. fair isle of my own design - lavender & pale pink
F. cabling - use those knitting math skills & pay attention to what i'm doing!