I know I probably started as a belt notcher just due to a lack of information in the preinternet age, but I'd often find the courses I stumbled upon were nearly always my favorites.
Once using the internet and other great resources such as The Confidential Guide and more recently this website, the need for a Top 100 list became less and less.
I always try to play the local gems of an area, specifically 9 holers as they make a nice end to a 27 hole day, and are usually low key, unpretentious and charming.
Ironically, one very good internet resouces is UK Top 100, where I've been able to research and eventually play many non Top 100 courses
I do try to avoid playing courses where playing there is a big production(caddies in white suits or even caddies at all), and Top 100's often fall into this category.
I'd much prefer to play a low priced, low key, unpretentious raw gem where the staff is pleased(and curious) to see you.
The Northwest of Ireland is the capital of this category.
,but I much enjoy the remote/holiday courses of New England for many of the same reasons.