I use both and find it difficult between but I’d say Cjp is my go to brand. Only issue I had were the acrylics were in small pots which I used quickly but they have now introduced larger pots.
Glitterbels have a larger range of glitter acrylics and their packaging is nicer, cjp is faster to work with for me.
Regardless of which one you choose, you won’t be disappointed.