Might and Magic

The fighter/barbarian/sorcerer is quite fun to play. If he takes weapon specialization feat for the greatsword, along with the power attack feat, he can combo it for a special attack that can literally cut low-hitpoint opponents in half. His sorcerer abilities would grant him access to the true strike spell, which gives him a +20 insight bonus on his next attack.

This character will be one of the front line fighters for the party. He has good hitpoints, added movement and the rage ability from being a barbarian, a selection of fighter feats, and also clinches the sorcerer's base will save of +2 along with access to arcane spells.

Let's see how this will turn out:

To Hit:
+1 weapon focus, greatsword
+2 str mod
+5 BAB
========
+8

+28 if using true strike


Damage (using power attack feat)
+2 str mod
+2 weapon specilaziation (greatsword)
+10 (using power attack, taking -5 penalty to hit, +5 damag doubled for two-handed weapon)
+2 minim damage from greatsword
========
+16 total minimum damage

Weaknesses:
Low-AC (must use light-medium armors to be able to cast spells)

Advancement:
Can take more barbarian (hitpoints) or fighter (feats) levels. Need to find armor with decent AC and low % of spellcasting failure.