Final Fantasy Tactics Advance best job combinations

viera:
assassin/red mage (doublecast Sleep + Last Breath) raised as assassin
assassin/archer (ranged Ultima+Faster) raised as assassin
red mage/summoner (doublecast Summons) raised as assassin
assassin/archer, raised as sniper (giving up a bit of speed for a bit extra Watk)

bangaa:
templar/gladiator (nagrarok+Ultima) raised as gladiator
templar/bishop (excalibur+Holy+Cura+Break) raised as monk for extra speed.
templar/dragoon (black robe + gae bolg + Jump) raised as dragoon

human:
thief/blue mage (Concentrate + first-strike Night) raised as ninja
paladin/hunter (sequence+SonicBoom) raised as either hunter, ninja, or blue mage
hunter/blue mage (ranged Ultima + general usefulness) raised as hunter
illusionist/blue mage (concentrate+Target All) raised as ninja

(One illusionist is wimpy. But a party of six - striking first - is devastating.)

nu mou:
black mage/sage
morpher

moogle:
thief/juggler
gunner/mog knight (long range Ultima+Mog Rush+Mog Attack) raised as mog knight or juggler
time mage/animist (concentrate+FrogSong) raised as time mage (special for Montblanc)

You missed a fairly obvious and pretty important one:

Viera:
Assassin + Sniper.

Assassinate
Sharpshoot
Reflex
Concentrate

This is such a ridiculously broken combination it's not even funny. Sharpshoot gives you the ability to use Beso Toxico (full weapon damage + Poison, and it negates Reflex, Strikeback, and Catch Arrows, for no MP cost). You get the Aim Equipment abilities if you really want to be sadistic. But, most importantly, you get Camouflage. The ability to turn invisible, run behind people, and use Rockseal or Last Breath. With Concentrate for boosted accuracy.

Also, there is pretty much no reason to not raise a Viera as an assassin. While other jobs may have better growth in a particular stat, it's fairly negligible, and the loss of high rounded stats and the massive speed drop is pretty noticeable.