It's quite difficult to make a comparison with zero knowledge of one of the two being compared. You might want to read some of the posts above yours, which discuss the advantages and disadvantages of each.

While BA F is nowhere near as nice as CX F, it's still much nicer than CX J. Since you don't say that your choice was influenced by cost or other considerations, I'm surprised that you would make this choice, although if you are making decisions and recommendations to others without knowledge of the alternatives, I suppose it isn't surprising.