Furious Charger backround history trait that gives +4 AB instead of standard +2 when charging, it must be taken at level 1.
Powerful Charge gives +1d8 damage per hit for medium sized creatures and +1d6 for small. (Not sure if fighters can take this as a bonus feat.)
Dire Charge is an epic feat that requires Improved Initiative (a dead feat that is not fighter bonus feat as far as I know) and it lets you do more attacks against the target of your charge attack. Sometimes its all attacks according to your bab, sometimes it is less, it kind of depends on the charge distance.
Battlerager PRC lets you have the
Powerful and
Dire Charge feats for free and most notably pre-epic. Dire Charge makes charging a rather handy thing to be used against ranged/casters mobs and relatively useful against the regular melee mobs as well. You have slightly higher AB, you do slightly more damage for few hits, and the combat is not just 'tab' + 'Q' to move to the next target. It was more like 'tab' + 'tab' + 'tab' + '3' for me.
Anyhow, buildwise, if you can spend the bonus feats on charge feats, it means that you will have more feats left to get other things. With Epic Feats that can be something like Epic Weapon Specialization or Focus, or perhaps Epic Prowess or that one additional Great Strength.
As for pre-epic feats: you could probably get things like Steadfast Determination few feats earlier, and perhaps even have a spare feat to burn on something like Iron Will.
Thus, all I can think of is some potential +1 or +2 on AB, Damage, AC, or Saves. Its probably not going to rock the boat in any direction.