For out and out crushing swordsman I'd use a fighter/barbarian/frenzied berserker build. The schtick would revolve around a couple of feats from a few different books to make a gigantic zweihander "Mountain that Rides" type character.
First off we want the Gigantic Weapon feat from the NBoF. Then we want the Heavy Weapon rules and the Exotic Weapon Proficiency feat that goes with them from MoF, then we want two-handed power strike from Quintessential Fighter, and finally we want to choose a weapon, the flamberge, from Quintessential Fighter.
The rest of our feats will go towards things such as weapon focus, improved critical, and prerequisites for the frenzied berserker.
Gigantic Weapon allows you to wield a weapon in two hands one size larger than normal. Heavy weapons are weapons forged of enchanted metals much denser than steel that require an exotic weapon proficiency to use. The flamberge is basically a kriss the size of a greatsword. So we are going to use a Huge Heavy Flamberge.
That's 4d6 damage (2d6 -> 2d8 -> 4d6) with an 18-20 crit range.
Of course any weapon with an 18-20 crit range you have to work with.

So improved crit makes it 15-20 and keen makes it 12-20. So 4d6, 12-20/x2.
Two-Handed Power Strike says that with this feat whenever you take a full round action with a two-handed weapon you can apply 2x your strength modifier instead of 1.5x.
Barbarians give you rage, berserkers give you frenzy, and fighters give you feats and specialization. Figure in a belt of giant strength +6, a +2 keen huge heavy flamberge of wrathful healing (Enemies & Allies), and a loin cloth and you've got one version of an ultimate swordsman. Make him an orc while you are at it. They look good doing this sort of thing.
So we've got 22+3+6+4+6= 41 strength for a couple encounters per day, a lot of hit points, improved power attack from the frenzied berserker (allowing us to get more bang for our buck--especially since criticals multiply power attack), 4d6+30+2+2 = 4d6+34 damage per swing---half of which we heal back (hence the loin cloth, who needs armor?), and crits on around 45% of our hits.
Figuring in half improved power attack that's easily 4d6+40 or 54 points of damage per hit (with an extra attack from frenzy). And 108 damage criticals.
I'll work on a more Oriental Blademaster type ultimate swordsman next.