As you mentioned, what works for one won’t work for another, especially comparing yourself to the diet of a 200+ pound drug assisted bodybuilder. Some competitors do well on high carb, others need to do low carb, it really depends completely on the invidivual.
Personally, I can keep carbs relatively high most of my contest prep, with moderate protein and fats. Typically protein is around 1g per pound, fats are 25% of total cals and the rest is carbs. That’s a great template and you can tweak from there.
Clean foods are common across the board for any serious bodybuilder.
If you’d like to check out my prep log I was very detailed with food choices, macros and all the adjustments I made throughout. Rob's 2017 Contest Prep Thread