The Best Credit Card.?

I'm thinking of switching my Amex Clear to another credit card. I like Amex and their customer service is awesome but less and less businesses out there using Amex service anymore due to their high service charge. So it's very inconvenience for me. I thought of getting Capital One credit cards but very alarmed on how many people got trouble because of it. All the research that I did make me even confuse so I'm just going to ask a real people who have a real experiences with their credit cards, Who have the best credit card offer out there...and if the company also have a great customer service (meaning any issues or concerns are satisfactorily resolved in timely manner) I have an excellent credit score thus I don't want any credit card company that will mess around with it either... Thank you for your help