Most of my stuff is either CarPro or Gyeon, but I wouldn't say I have a loyalty to one brand or another.
ONR is definitely the goat. It's a permanent staple in my pile of products that never goes out of stock. It has a million and one uses.
I have a few CG products, mostly because we have a local CG store that runs sales and discounts very frequently. When you get some of their stuff at 50% off, it becomes an
alright deal. I've been running through a gallon of their Snowfoam soap, and I do like their leather cleaner. Not for how well it cleans, but for how well it smells