Which game had the best Camera Obscura battle system?

I'm talking about how the each of the game's cameras operate during battle against ghosts. Like the charging system from FF1, 3 and 4, the proximity system from FF2 and the multi-focus points from FF5.

Which one of them was the best/your favorite and why?

I personally really dig the system from FF5, i've never gotten so invested in the ghost battles as with that game, with how you gotta look for all the weak points and try to frame them in the same shot for better damage and Shutter Chances. And my least favorite gotta be the one from 2, which as creepy and tense it is to have to be all close and personal with the ghosts to deal maximum damage, i never quite managed to get good at it and would often take unnecesary damage trying to take photos.