At first, I was intrigued by the Bastard Sword, but I do not see the advantages of using it over a greatsword or a one-handed bladed weapon. The only reason I would choose a Bastard sword would be for character flavor and role-playing reasons.
The bastard sword gives you only 2 extra points of damage over the longsword and has the same threat range. The longsword can be wielded two-handed as well by the right sized character.
If it is damage you are after, then the greatsword offers more damage, at least 2 points (2d6) over the 1 point (1d10) of the bastard sword.
Plus you have to spend a feat to become fully proficient with the bastard sword.
This is just my opinion, of my course.

The bastard sword gives you only 2 extra points of damage over the longsword and has the same threat range. The longsword can be wielded two-handed as well by the right sized character.
If it is damage you are after, then the greatsword offers more damage, at least 2 points (2d6) over the 1 point (1d10) of the bastard sword.
Plus you have to spend a feat to become fully proficient with the bastard sword.
This is just my opinion, of my course.
