We play mini golf every trip. When the boys were in elementary school, the Winter Summerland course was a favorite - cute courses with added bonus of singing Christmas songs in August.
As the boys got older, the Fantasia Fairways course with their own putters has been the only option for us. We have played the Fantasia Gardens course which is similar to the kitchy Winter Summerland courses.
If you are staying at one of the EPCOT area resorts, walking to the either of the Fantasia courses is a nice option.