Here are photos of the zips on all my jackets that have zips (excluding the orange hoodie that's hanging in my office at university):
As you can see, all of them have the zip on the left (as you wear it; the right as you look at it), except for the one in the lower right-hand corner. That's the new hoodie. For that one, the zip is on the right and the bar you slot into it is on the left.
I don't know if this is some kind of male/female, Europe/USA, non-hoodie/hoodie thing or what, but it unnerves me every time I put it on. Zips shouldn't work like that!