Let's see. Porters
Anchor Porter
Sierra Nevada Porter
Deschutes Black Butte Porter
Great Lakes Edmund Fitzgerald
Fullers London Porter - great, but absolutely fantastic when cask conditioned
Flossmoor Station Pullman Brown -- they call it a Brown but it's more of a robust porter
Stouts
Guinness
Old Rasputin
Surly Darkness
Bell's Double Cream Stout
Goose Island Oatmeal Stout
Rogue Shakespeare Stout
My RIS, a pint of which I just finished
I love both of these styles as there are so many ways to go with them. Dry, creamy, big, robust, etc., etc.