I've always been partial to American Express for two reasons; rewards and good customer service.
Up until recently I had been using the SimplyCash card. I had noticed the review on here last week for the Blue Cash card
and have decided to go back to using that. I have had that card for four to five years but had stopped using it. I had never canceled the card however so I only had to pull it out of my sock drawer.
I'll use this one for now due to the rewards only but I have yet to deal with customer service for that card. It may be possible since this is a consumer card they offer different quality customer service than their business credit cards. If they're customer service is equal to that of the SimplyCash I will have no complaints. However if it is inferior I may be tempted to switch back.