Hi,
I went last year the first week in October, and I liked it so much I'm going back this year the same week. It wasn't too crowded and the temperature was perfect. The only complaint I could have was the weather. It rained every day for some part of the day. I think you run that risk any time in the fall, though. Luckily the showers were scattered and didn't ruin our trip. As for the Halloween party, I bought tickets for the third night we were there, which was a Sunday. I loved the party so much that I bought tickets to go back on the following Thursday. It was the highlight of my trip. What is it that you think you won't like? The rides were all walk-on, with no lines whatsoever (be careful of the night you go though, I hear Fridays are always crowded), the fireworks were the best I've ever seen (like them better than Wishes), and the parade was great. And I'm not a parade person. I also have no kids, I'm an adult and loved it for my own reasons. If you have questions about it, ask away. It might just not be your thing, I suppose.