Fall is probably my least favorite season, but it does have its perks. People talk about "the feedbag" being put on for winter, and in many cases it is true. I find the windows of activity being shorter in the Fall, with most gamefish going after bigger baits. This is the time of the year where I start catching 4 and 5 pound bass while I am throwing for pike or musky. For strictly bass, the plastic bite still seems to be on, although they are harder to target. The fish spread out some and I never really get on a sweet spot, but find different groups of fish throughout the lake. I would imagine this is related to turnover. For creek or river smallies, I like to use rooster tails or small Mepps in the Fall. When you find an actice window they really hammer them.
Here is a Fall bass from last year that hammered a Super Shad Rap