Unless it's a boss monster or a particularly hard monster configuration I tend not to use a planned out battle tactic. I tend to hack n' slash with a Knight/Lancer mix or magic the hell out of 'em with a Blackmage. And when it comes down to it this game is still about power training, power training, power training, until your hands bleed and your brain has completely wandered off. I like this game, but I can only play for short periods of time while not on the interesting storyline.
What tactics do you use? Did you enjoy this game?