Which Final Fantasy Battle System is the best?

I don't know if this topic has been posted but this question of mine triggered right after I played FFXII. I find FFXII's battle system pretty interesting, in fact better than the other two previous battle systems (Active Time Battle - ATB, Conditional Time Based - CTB)...and I started to dislike random battles for some reasons.

You can check this wiki page for more info on which game of FF uses what type of battle system: Final Fantasy Battle Systems

Its pretty strange, I've been looking high into random battles from the day I started my first FF game and now I'm hating it lol. Why I think random battles suck? Cuz it gets really annoying when the monsters are at low level jumps out at ya especially when you're looking for a way out or something inside a dungeon. And something like this:

squallpayne: "Oh boy oh boy, I'm almost near to that PRECIOUS treasure chest! Yipp...huh?"
*Random battle BGM + screen fades, breaks, whatever*

In Real Time Battle (RTB), like in most MMORPGs including FFXI and FFXII...you can avoid contacts with monsters on the field when you are set on doing something else...like finding a more specific target, treasure, getting into a place in a hurry, etc. Ah, reminds me of another annoying thing abt random battles...when it involves TIME COUNT. When there's countdown and your characters are supposed to reach somewhere in time, imagine getting each 5 secs a random battle and the countdown still runs even during battles.