Final Fantasy XII/Swords & Greatswords

Swords
Swords can be used one handed, the other hand usually occupied by a shield.

Save the Queen
Save the queen can be obtained as a price for completing the Goliath hunt. It has 100 attack points and a properly augmented character can do 3000 and above in damage. this is a rank VI hunt located in the Nechrohold of Nabudis and should not be attempted unless all main party characters are level 50 and above. this hunt becomes available after the events at Draklor Laboratory late into the game.

Ragnarok
A reward for the Ixion hunt

Ultima Blade
Ultima Blade can be obtained through the bizarre goods by obtaining two death powders from the bogeys in the Zertinan Caverns (rare drop), two adamantite and one gnoma hyclon (steal from elemental in Westersand during sandstorm).

Excalibur
Lp:120

The Excalibur is the second most powerful sword. It has a whopping 127 Attack and 10 Evasion (US Version) and it has 128 Attack and 25 Evasion (International version). To get it, it has two ways, that is defeating the Gilgamesh in the side quest "Battle on the Big Bridge".