I drive a Nissan Versa. They are somewhat similar (I have the sedan though, not the hatchback).
I liked the interior on the Versa better. Of all of the similar cars I looked it, the Versa had the nicest interior - everything else looked "cheap" and plastic-y. My dad drives a Vibe and I hate the interior on it. The Prius and the Yaris weren't any better, really.
The Versa is rated at 30 MPG city / 36 MPG highway - the best I could find in a non-hybrid (which were all out of my price range). I average 32-33 MPG pretty consistently. Gas mileage was the main factor for me since I drive so far. I drove 5 years in an Intrepid getting around 20-22 MPG, including when gas hit $5+ per gallon a few summers ago. Wish I would have had the Versa back then.