Choose a Card According to Your Payment Habits

Different cards fit different needs. Some charge lower interest rates but may carry a monthly fee. These would be a good choice if you tend to carry a balance (the savings you get from the lower interest rate may exceed the annual fee).
Other cards charge higher interest rates but don't impose an annual fee. These would be a better choice if you pay off your balance every month (if you don't carry a balance, you're not affected by the interest rate).