Out of the items on the list: tables. They're used for breaking falls or lessen impact and as such pose no real threat.
But I just have to say this about the good ole kendo stick...
Have you ever been hit with one? A bundle of sticks loosely held together with string - it might not sound very painful, but trust me when I say that a kendo stick in the ribs stings like a
motherfucker. I'll take a chair shot to the back any day over a kendo stick to the back (or a leather strap with a belt buckle). That shit
hurts and you can't fake it.
I find HHH's sledgehammer to be fairly overrated. He mostly does the shoddy "I'll put my hand between the hammer head and its intended target, because I never liked my fingers anyway"-routine whenever using it, so it looks really weak. The one notable exception was when he cracked Vince across the back of the neck with an obviously previously 3/4-cut sledgehammer in that HIAC match back when DX feuded with the McMahons. That was full swing and it looked
badass.
But out of all the weapons commonly used in wrestling, I have to say that the "kitchen sink" that is often included out of a failed sense of humor, a completely bombing pun, is the most overrated weapon. Not only does it look, like the trash can, to be made from tin foil, but it's just a
stupid thing to "happen" to be laying beneath the ring.
Just saying.