Need advice on first Colorado Trip (late Oct.-early Nov.)

Wife and I, no kids, are making out first tip to Colorado later this year. We'll be there for 9 nights, and already have an AirBnB booked for last 6 nights in Colorado Springs that's about a 5 minute walk from the Broadmoor. We're trying to decide what to do with the first 3 nights, and have narrowed it down to Vail/Breckenridge vs. Estes Park. We'd like to do some lite hiking, maybe sledding/tubing but we won't be skiing or snowboarding. We'll probably spend time in Denver they day that we switch locations. Looking for good food options, breweries, attractions, museums, experiences, and other activities as well.

I'd like to book the other AirBnB this weekend, and probably a rental car as well. Advice on any other experiences/activities we need to book soon would also be appreciated.

We're really looking forward to the trip, as it will be our first time in the mountains. We're flying in and out of Denver, and work is reimbursing about 40% of my expenses so we have a larger budget to work with than usual. We're naïve to the area so any advice/tips are appreciated. TIA!