If you want to go to the most famous Chrono, you will go on the Daytona.
If you want to play a more original card, you will go on the JLC.
Mechanically speaking, both are interesting.
Aesthetically speaking, it is very subjective, as will all depend on you.
The JLC has a very discrete seconds hand, and it looks like a bi compass.
The Dayto is a classic 3 counters.
The JLC is bigger, and thicker, and the compressor crowns are less discrete, for the same water resistance.
Both are very nice, but it will depend on your tastes.
I know that this answer will not really help you, but I honestly think that it will depend on subjective themas, as aesthetics, or the preferrence ofr a famous or a less known Chrono.
Keep us updated, please!
Best,
Nicolas