My first choice for autumn foliage would be E100VS. It actually handles the contrast of sunny days quite well, I've found. In that regard, I prefer it over something like Velvia 50, which always seems to give me either empty shadows or blown highlights on a sunny day.

I also like that E100VS doesn't give me a blue cast in overcast conditions, like Velvia 50 tends to do without something like an 81B filter in front of it.