I really think it depends on what colours you personally like and wear. My most used green bag is bambou which I would never have thought until I bought it and release I reach for it a lot. I wear a lot of black, grey and navy and it gives me the complimentary pop colour I need. I used my malachite less since it blends in more with my clothes.
I don't find blue neutral for me since it is not complimentary to the colours I wear. So my most used blue is a fun summer colour - blue atoll, but I don't use the bag that often.