The question is in the title. These are the best cards right now in my price range. I know some outperform other cards but they all have significantly different price points.
All will play 1080p quite nicely. The 760 is the stronger gpu out of the three. If prices are close, get the 760. Really depends on your budget. The 270x gets very close to the 760 in some games.
Definitely go with an ASUS GTX760-DC2OC-2GD5 http://www.amazon.com/gp/product/B00DBPKEOI. It's the most powerful of those options and the best value when it comes to price to performance.