I lean toward the classic colors so that you can throw it over any outfit whenever you need a raincoat, but the Zara one is 100% cotton exterior and that would bother me.
I think a trench needs some polyester or something to keep it from looking wrinkly, shed rain better, and not get tired looking on the edges before I get tired of it myself. . .
That would leave me choosing neither of these
(aren't I a lot of help?)