I do not like Starbucks at all - Dunkin Doughnuts coffee is good, but I hate that they make it for you.
Coffee is a process for me that borders on obsession, which is why I am glad that coffee and fishing go so well together. I will often make a thermos full and take that fishing rather then purchase sub-standard coffee.
In my area, The Bucks County Coffee Company makes some real good brew. In Doylestown, Pa there is a Starbucks and Bucks County Coffee in the same block - you can compare cup-to-cup and I have!.
Bucks Co. Coffee is available in the train station in Philadelphia and Washington, DC which is how I discovered this coffee.
As for particular types of Coffee, I prefer Columbian (Supremo) bean, which is hearty and full flavored. Coffee is Columbia is sold by grade of bean and not by location, hence all the coffee is Columbian. This makes it easy to choose.
Brazil beans coffee have a great flavor and dark color smiliar to a dark roast with less oils and therefore less bitter. If you get Brazilian Coffee you want to get Santos 2 (2 is the highest grade, I have no idea why?). Do not just buy any Brazil coffee as they also produce the lowest grade crap out there.
Hawaii (Kona) beans are up and down, they are expensive so if you get a good producer stick with that and do not purchase "blends" or Kona style coffee. They like to play with this name so be careful, as it is common practice to mix a small amount of Kona beans with the lowest grade South American beans to make "Kona Style or Kona Blend" This can be the best coffee in the world or the worst depending on the purity.
I avoid anything from Jamacia - although the famous Blue Mountain Coffee is considered the best, the real stuff is pricey.
Worth mentioning: Africa and Arabia. These are some great coffee, usually they are brewed much stronger then the typical coffee, sort of like sweet espresso style. Good stuff!
In order to get the best cup of coffee, you MUST grind the beans fresh and use cold water to start. The coffee makes shoudl use a uniform amount of heat and I have found that the pot warmer shoudl never be too hot as that will cause the coffee to oxidize from the heat.