Our opinion

Both coffee bean and starbucks do work in the similar way. Both do have some of same foods. They are popular as well.

But, we personally like Coffee Bean & Tea Leaf. Before we like Starbucks and that is just because we have never been tried coffee bean and compared the differences.
Let us enumerate the difference and opinion

1. Espresso shots re fresh. Its grind freshly when you order your drink unlike the starbucks it is already made pre made in their machine.

2. Coffee bean uses the actual tea's for all the tea drinks but starbuck uses syrup.

3. Coffee Bean uses powder to all flavoured drinks. Starbucks uses syrup again which make the drinks weak.

4. Coffee Bean automatically uses non fat milk for all the flavoured drinks. Starbucks default milk is whole milk.

5. Coffee Bean uses the appropriate words for all they drinks to avoid confusion like
 a) size of the cups : small, medium, large
  starbucks : tall, grande & venti
 b) Latte means hot milk & Macchiato means espresso with tea spoon of milk

Everyone do have different opinion towards the coffee bean and starbucks. But we recommended to try on Coffee Bean where we here better comments about their product and soon we are having them ! :)