I actually eventually voted for Gisele Bündchen's cover, but only because I missed the "None of them"-option, haha. Gisele's cover, however, is regardlessly the least hideous of the lot.
What a miserable year this has been for US Harper's Bazaar in terms of (non-subscriber) covers, though. They've all kind of had the awkwardness that has ruined so many InStyle covers, and in addition to putting some effort and oomph into their cover shots I really wish they'd tune down the font size a notch. Halle looks like's not getting enough oxygen amidst all that text. I'd also bring up the subject of the Angelina Jolie cover here, but I think mentioning it alone is quite enough said.