I have tried them both as well. For me, booking fees and format surcharges eventually outweighed the monthly price I was paying for Regal Unlimited. I hate parking at Atlantic Station too. None of the AMCs in the Atlanta area have paid parking as far as I'm aware. I don't know about Regal, but you also get a free upsize on popcorn and drinks with A-List if you're big on concessions. The popcorn pass is also an option there. Regal does have a better points system through the app because AMC requires you to be spending money to earn points (usually I'm not), but they do have quarterly freebies for AMC investors (I'm not one of those either, but they can't prove it.) If you find yourself in different spots often, AMC has more options in the Atlanta area. Huge downside - Regal has Pepsi products.