If you were getting a free lens...

This group test doesn't include the Panasonic zooms but I would imagine their results would be very similar to the m.zuiko 14-42. Although it's just one review, other reviews of this lens would indicate that it's outstanding value for the money.

It's not on your list (sorry) but the older 14-45 might give the 14mm prime a better run for its money and can be bought second hand for a good price. That's if you feel the need for the flexibility of a zoom.