Left Hand Brewery makes an Octoberfest that is pretty darn good. Another seasonal beer that I was shocked how much I liked was Weyerbacher Imperial Pumpkin Ale. I bought a four pack not knowing what I would think of a pumpkin brew, and it was outstanding. Picked up a four pack of Dogfish Head's pumpkin offering, and while good, not as good as Weyerbacher's.
I'm into porters too, but theres not a very good selection where I shop. Anchor makes a decent one, and Troegs makes a pretty good one too. I'll have to look for Liberty's.
I love hoppy stuff too. The last couple Phillies games I went to (NLDS game 2 and NLCS game 1
) I drank Victory HopDevil. Damn good, especially for a ballpark offering. Citizens Bank Park (the Phillies home stadium) has a wonderful selection to choose from for a major league stadium.