You really have a knack for wonderful knits - must say that number 3 is my favorite although impractical for most of us in our normal everyday lives... does the collar lie down when opened for a nice face frame?
number 2... all i can feel is that nice, hard, scratchy, cold, metal zipper against my nice, smooth, warm skin - yuck unless there is a facing behind it that we can't see. Love the colors.
number 1 is really the most conventional but also the most usable. Definitely something for fall and winter. Same issue with zipper.