<prompt> Human: First, Id like to say that I am not a newbie to credit cards. Currently, I have two in my name: A Discover it Student Chrome card I use for stuff like subscriptions to Amazon Prime and my cellphone bill those are the only two things being charged into it, and a Navy Federal GO REWARDS Card for everything else gas, discretionary spending, grocery, fast food, etc..Its been a year since opening those up and Id like to product-change my NFCU card to a cashback rewards card to charge my monthly bills along with my Discover card, and shift the bulk of my spending to the AMEX card.Ive paid off my credit cards in full every month since they opened, so I have zero balance by the time the statement is due. My average combined spending on my current credit cards is 600 a month, but I spent nearly 1500 combined on November and December because of the holidays.Im mainly going to use an AMEX card for discretionary spending, gas, and food. I bike to school so I dont spend a lot on gas or car maintenance, but I go home every weekend to visit friends since the campus is a commuter school and theres nothing to do there; it drives me insane. Which AMEX card would allow me to take advantage of it based on my spending habits?tl;dr Which AMEX card to get based on my situationspending: Tuition is taken care of thanks to savings account my parents built up for me. 600 for monthly rent paid by cash, not card. 45 for cellphone. 100 on gas. 200 on grocery. 100 on fast food. 200-300 on discretionary spending. The rest of my monthly income and allowance goes to high-yield savings.So in total, I spend 600-700 on my credit cards.Thank you!edit: Thank you guys for your input!  <response>: Hi. At this point of income and expenses, I would recommend you the blue card, which should have no annual fee, but it still has all the advantages Amex provides. I dont think with your expenses you would be able to get enough reward points to justify a 99 annual fee for the green card, but you can do the calculations and see if you can actually gain some in rewards. 