Cooperstown is "heaven" to me. my dad & i have been going there for years, and this past March, i took my wife (for her first visit) and my parents, we treated them as a Xmas gift. we had a blast, we stayed at the Inn at Cooperstown, a beautiful B&B on the edge of main st. we love having lunch at Doubleday Cafe, and dinner at the Hawkeye Grill at Otesaga Resort.
Obviously the highlight is the HOF. it has evolved amazingly over the last 20 years (as long as i've been visiting it). it is truly one of the best museums on Earth. everything is very well presented and laid-out. The Hall itself is stunning and gives you the chills, take your time and look at each plaque and soak it all in. as mentioned above, the Ruth room is awesome, and the vintage uniforms & bats are thrilling. i also love the "Art" room, which displays many great paintings related to the National Pastime.
http://www.innatcooperstown.com/
http://www.tripadvisor.com/Restauran..._New_York.html
http://www.otesaga.com/dining
enjoy!
MS