Well, my favorite type of outing is a small, woodsy, freestone brookie stream. There's many of them, and the best are the one's I haven't fished yet!
On bigger streams that I'm willing to name. Penns. It still has that woodsy feeling like a small stream does. But it has it all. Bigger water, bigger fish, hatches, technical fishing, wild fish. The LJR in the gorge is in this category as well.