Starbucks of course, but it's not always the best. Ever once in a while McDonald's will make good coffee, but I only drink it cold since hot causes my stomach issues to flare up. I had a really good iced coffee from McDonald's the other day, but usually their icee things (forgot the name) are better than the coffee with just ice. Then sometimes it seems like there's no coffee, but tons of chocolate syrup. Yuck! I like my coffee strong. Now my second favorite is, and I have to admit, it sometimes beats star bucks - sonic! They're coffee that's kind of like an icee and really strong with whipped cream is the best! Krystal used to have a Java Creamer that was really mind blowingly good, but I think they stopped selling it
Usually I just make my own iced coffee though. Speaking of Krystal, their egg nog milk shake is one of the best things I have ever tasted in my life!