Which weapon is better?

[J.T.]

In my weapon set I notice I have 2 weapons of the same type, different skills, but same attack power. I was just wondering which one others thought were better.

For now, this is only question.

Both 61 attack.

Pirate Blunderbuss-Rare .................Swashbuckler Blunderbuss-Rare
Stun Shot Rank 2 ...................................Healing Boost Rank 2
Take Aim Boost 2 ....................................Scattershot Boost 2
Venom Shot Boost 1 ..............................Sharpshooter Boost 2

These are my current skills, without these weapons, that these weapons would affect.
Shoot Rank 2
Take Aim Rank 2
Venom Shot Rank 2
Sharpshooter Rank 4