Nails for the week: Five colours from O.P.I

With so many nail polishes, it is hard to choose what colour to go for to start the week.  I thought I would go for a colour from O.P.I but which one?

Check out my range below, from pinky to thumb:

1. Berlin Done That
2. Every Month is Oktoberfest
3. Unfor-greta-bly Blue
4. Thanks A Windmillion
5. I Don't Give A Rotterdam

Check out there other colours here: http://www.opi.com/

I decided to go for 'Every Month is Oktoberfest...which one would you of chosen?