Are you going to use a patched versions (evasion bug fix, ect.) or a clean one with all the bugs?
A few basic tips;
In most cases, anyone who can do damage with anything other than fight is usually better than fight. Pummel, Dispatch, and Drill will probably help you walk though most random encounters without much difficulty in the first half of the game.
I don't really read walk thoughts, but the hardest parts will be being prepared to boss battles. I used to find Ultros the first real challenge of the game because Banon dying is an automatic death scene.
I usually put everyone in the backrow for the defense (and seeing as I rarely use fight anyway, that's the only thing I noticed get weakened and emphasizes the 'damage without fight = better than fight' (though, there are exceptions)
I think I read this once, and it seems mostly true though out the game in terms of weaknesses for your enemies;
Most humans weak vs poison, bugs/plants weak vs fire, air and mechanical weak vs bolt, reptiles (and the rare dragon) weak vs ice.
Edgar's Noiseblaster gives the entire (susceptible) group of enemies muddle which indirectly protects your party.
Knowing where all the treasures are will help out. If your looking to just beat the game, the easiest way to give yourself an advantage is to set the game settings to "wait" so it pauses the battle gauges while you pick something and battle speed to the slowest (I feel this only effects the monsters speed, not your own characters).
If you have any questions about FF6, I can probably give you a tip on what to do without suggesting something cheap. (like "just use vanish/doom, huh huh")
I usually try to beat enemies legit without using any 'tricks'.
