Discover Cash Back Bonus Which Credit Card Is Better?

Which credit card is better? - discover cash back bonus

It seems that Discover offers the best price in all species, the new obligations. Then I found the navigation American Express Blue from American Express ®, the most comprehensive sites on the Internet. However, it seems Cards, MasterCard and Visa are accepted.

I am a student and would like a credit card to obtain credit-building construction. Discover and American Express are my favorites, but the only thing I like in this regard is not accepted everywhere Discover and American Express.

Or I should have a Citi or garden?