I prefer Coffee Bean & Tea Leaf's process for making frozen coffee. The flavor and texture are better.
My first time at a CB&TL happened because I was too far from another chain...I haven't had the other chain's coffee since.
I like the ambiance in their shops. I like that they aren't "in your face" with their marketing.
I also LOVE their Winter Tea. I cannot recall the name of it at the moment, but it's divine.