Obviously the Kristen Stewart version looks cooler, but the problem with it is equally evident - they cast Kristen Stewart. The wicked stepmothers are also an interesting battle of the hotties, Julia Roberts for Relativity and Charlize Theron for Universal. The latter has a bigger budget, but the former (apart from not having casted an angsty mouthbreather in the lead role) has the greatest card in its favor: It's directed by my favorite film genius, Tarsem Singh.
Take a look at a few of the images from The Fall, one of my favorite films of all time. Seriously, if Snow White has any measure of this kind of aesthetic quality, Bella doesn't stand a chance: