Nissan, Toyota, and Chevy owners!?

So I'm looking at some different cars and I'm trying to figure out the most stylish and economical car. I am looking at the Nissan Juke and a few others from Nissan. I've heard Nissan vehicles get really bad gas mileage. Is this true and how is the brand itself? I'm also looking at a Chevy Cruze and a Toyota Prius. My parents own a Prius and a Chevy truck so I pretty much know those brands but I would still like input! If you know of any other cars and car company's that you like please say!! Thank you!