Final Fantasy Tactics Walkthrough

Definitely choose to save the chocobo in this battle - when you win, he can join your party and lay eggs which sometimes creates red and black chocobos, which can be really handy if you want to experiment with leveraging monsters in your battle party (or, if you're a sociopath pragmatist and like to raise animals to poach later in the game for their drops).

This battle is a cakewalk. Simply bring along your most powerful characters and a Wizard with Ice spells and it's pretty much over. Gafgarion and Agrias will walk through the goblins, and with Ice-elemental attacks, you can't lose. Not much preparation is needed, but be sure to try to get to Boco as soon as you can because the Black Goblin can hurt him if they pin down the bird, though unless they attack in numbers it isn't a big deal since Boco can heal himself.

Before heading on to the next battle, if you want to make it simple, make sure completely unequip Gafgarion and turn him into a Time Mage or some other job with low HP.