Insert a Spiral Knights weapon, don't give me poop about a TF2 minigun.
You can do any weapon, but ones I really want to know is:
Glacius
Mad Bomber
Vog Cub
Nitronome
Electron Vortex
Flourish/Thorn
Storm Driver
Valiance
Blitz Needle
GF
DBB
Why would anyone post about TF2 weapons? I don't see why you assume your readers are idiots. It does not make me well-inclined to help you.
Anyway, it's not rocket science. Weapons prized for their normal attack are best with ASI. Weapons prized for their charge are best with CTR. Monster damage bonus is always fine (unless a weapon deals almost no direct damage, e.g. because it's just for status infliction) if you're planning to use it against that monster and won't already have max damage. Again, duh.
Mad Bomber and Vog Cub are not weapons. You do know this, right?
I think it's hilarious that you'd even ask about bombs. Gee, I wonder what UV you'd want on one of those? -___-