As far as the card itself, look for reviews, but they ought to all be within a hair's breadth of each other in terms of performance and cooling. So, look at what accessories, games, etc the card comes with, and the warranty (especially!), and of course also which is cheapest among your top choices. Other stuff like the cooler (is it sufficient for your needs if you plan to OC, for example), if the card has a backplate, things like fan stop (stops the fans spinning if there's too low a load) for silence, etc are important but not as important.
Personally (but this is just me) of the choices you listed I'd be happy with any of those three. I'm happier with the ASUS and MSI coolers but don't care about GPU OCing, and all should perform really well while being very quiet.