this is how i generally think of a course when putting a rating together:
1 disc for Fun
1 disc for Challenge
1 disc for Land Use (best possible course for available land)
0.5 disc for Amenities (Trash Cans!!!!/Bathrooms/Water/Benches/etc.)
0.5 disc for Flow
0.5 disc for Teepads (dirt/cement/rubber doesnt matter just consistency and well maintained)
0.5 disc for Tee Signs (Distance must be marked! to earn full half disc)
Bonus 0.5 disc for Aesthetic appeal
you are missing so much!
To remember everything you have to take into account:
left vs. right dog legs, signature holes, blind holes, foiliage, tight vs. open hole number, variety in shot length, multiple pins, multiple tee pads, outside traffic, dog poop, wildlife, "Appalachian Beauty", the course's ability to play to beginners and still entertain advanced players, Elevation changes, Novelty barriers, Course signage and flow, Water Hazards, OB's, ticks, thorns, road crossings, bike paths, availability of a map and Message board, pay to play, number of holes, type and condition of basket, type of tee, length of tee, poison ivy, mud and drainage issues, cleanliness, garbage cans, course maintenence and landscaping, other activities and course users, number of disc golfers on the course, bathrooms, benches, water fountains, disc lost and found, practice basket, potential for growth, and distance from other courses and highways, friendly locals, nearby attractions...shall I go on?