Need help choosing a laptop around $699

So I am looking to get my first laptop for college. I am graduating high school and am going into computer and information sciences at The Ohio State University. I want to do the free xbox deal that best buy has going on but I just don't know which laptop is the best one to pick. Here are the ones I have been looking at. Thanks for the help!

http://www.bestbuy.com/site/ASUS+-+Laptop+/+Intel%26%23...


http://www.bestbuy.com/site/Dell+-+Inspiron+Laptop+/+AM...

http://www.bestbuy.com/site/HP+-+Pavilion+Laptop+/+Inte...

http://www.bestbuy.com/site/Sony+-+VAIO+Laptop+/+AMD+Tu...

http://www.bestbuy.com/site/Toshiba+-+Satellite+Laptop+...

I might also do casual gaming but not anything real serious since I'll have a 360. Thanks again