They have very different sound signatures. If I would put a generic label on the JH13Pro, it would be the DT880, a favourite of mine. But, the 333 is more of a better-built DJ1Pro; it has exciting low and high ends, and an interesting mid-high suck out. The JH13Pro has a small bottom end suck out and a sudden brightness at the top while maintaining beautiful mids.
Soundwise, I don't have a clear favourite, but in terms of utility, the 333 is just easier, and since Mr. Suyama fashions much more shallowly inserting iems, it is easier to use. The case is miles better (penguin) and the cable is stronger, though microphonic. It will last longer and so too, will the police-grade connection unit.
If you want artwork, you are almost out of luck. You will have to wait for my review (in 3 weeks) to see what I man, but in terms of showiness, the FitEar loses in almost every regard.
Make is better all around.