Vin,
DH and I fished in October, it was cold, rainy, and I was 4months pregnant (do I love DH or what???), the fish were very small. I remember the guy at the marina said that they had a tournament the week before, and the winning fish was like 2 lbs! So I would not recommend Oct.
If you do go to Big Cedar use the points or cash to either get a cabin, or stay in Falls Lodge. We stayed in Valley View for one night before we moved to Falls Lodge, and I was not impressed. The bathroom was a postage stamp, and all the rooms in Valley View are smoking optional, which may not bother you, but it drove me crazy. The Falls Lodge room was beautiful, and very spacious, much more comparable to a Disney room.
If you eat at Devils Pool restaurant, be sure to try the blueberry poppyseed dressing on your salad, I'm having to order it over the net now!!