Amex Green/Blue for Student
All of you talk of Centurion this and that, but I would like to ask you seemingly knowledgeable people about some of the 'lesser' Amex cards. I am a student at university (in the US) of 18 years of age who has his own money and I am looking for the right card. I was looking at the Amex Blue, Blue for Students, Green Rewards, and Green for Students. I would pay off the balance monthly and I do travel quite a bit for someone my age (8 or so flights in the past two months). I find green for students a bit odd though, $55/annually and an additional $40/year for joining MR (when Green Rewards is $65 and includes this)? What is right for someone not looking to carry a balance but build credit at the same time?
Thanks.