Arkhandus said:
Fighter. As mentioned, nothing can compare to having 9th-level spells. A fighter at middle and high levels generally can't keep up with the offensive and defensive abilities of a cleric, druid, sorcerer, or wizard, and even a rogue can out-damage a fighter at high levels with a good Bluff skill to feint in combat and plenty of sneak attacks. Only at lower levels, or when ambushed at a terrible time, does the fighter even make a decent meat-shield or tank. They don't have the skill points or class abilities to be much use outside of battle, so fighters pretty well get the shaft. I like fighters, but they just get the shaft at upper levels. Fighters deserve to be scary at high levels, darnit, like Sephiroth or Conan.
Arkhandus, the fighter improves greatly if his path is:
1: Barbarian
2: Barbarian
3+: Fighter
Seriously, losing a single feat (the one you'd get for 20th level) gains you
extra movement (if you are not a heavy armor guy, and even then,
mithral full plate gives it back to you), rage 1/day (and you can take the
extra rage feat if your group uses Complete Warrior), more HP and skill
points. and that's just a bbn1/ftr19 build. make it bbn2/fighter 18, and
you gain uncanny dodge, so invisible foes can't sneak attack you.
And Human, Half-Elf, Half-Orc and Dwarf can do that build without an XP penalty.
You'll survive just fine even with fewer feats the first couple of levels. Take Power
Attack at 1st level, wield any 2h weapon (greatsword is nice

and you will rule
low-level, then can start adding bonus feats to get the useful feat chains.
That's your basic tank.
Keep in mind a 1st level human fighter can have:
pb shot (1st level char), precise shot (bonus feat), rapid shot (fighter feat)
or
mounted combat (1st level char), ride-by attack (bonus feat) and spirited charge
(fighter feat)
So starting as fighter does have some advantages, but if you are the greatsword
fighter, power attack is plenty good enough as a 1st level barbarian, add cleave or
somesuch if human.