As far as I can tell, the DS version of FFIV works the same as the original version. Interestingly enough Ozma in FFIX apparently has a unique ATB mechanic where if the player inputs a command before his ATB bar fills, it will auto-fill and he'll go before the player. There are minor variations within the system depending on the entry starting with VII. For instance, status effects are not affected by the ATB until FFVIII, so playing on a low setting in VII and XII will make abilities like Death Sentence and Slow Petrify more dangerous for the player. XII also has more ways to affect the ATB and the ATB affects how quickly an abilities charge time will take, so for players who like it fast, you should pretty much play it on the highest speed setting.

As for what jobs I utilize, I'm up for suggestions. I picked up magic so I can use the mages right out the gate and I've already highlighted two areas with Blue Magic. Though I said I would do a write up on the classes picked for me, I may just do one for all six on the next update. I'll give people a few days to give me suggestions and will probably play the game a bit later this week. I'll probably cover up to reaching Walse in the next playthrough.