For me, it's gotta be a gun. And not just any gun. A .357 Magnum. That's how Budd Dwyer did it, and he just died so beautifully. He did it in a room full of people too, and none of them could revive him, so you know it's reliable. I've fired a very well put together Magnum, way back when I lived in Phoenix I used to shoot cans out in the desert. It's just a great gun. So lightweight with silky smooth kickback but so powerful. It was my best friend's Magnum that he let me use out in the desert.
And a few years later, he used that very same Magnum to successfully kill himself. And I've been jealous ever since.
I've never used a shotgun, so I'd be less comfortable with a big, cumbersome gun like that instead of a nice easy to control Magnum.
Now see, every botched gun suicide I've ever seen has been with a shotgun. Also if you're asking god "should I do this?" WHILE the barrel of a gun is in your mouth - you're not ready to CTB. That boy's SI kicked in while the gun was in his hand and probably moved the barrel way out from where it was supposed to be. I just feel a Magnum gives you more control.
Also I grew up on Survival Horror games where the Magnum was always the most powerful weapon, so that's another reason I gravitate towards them.
As for the WORST method of Suicide - there are thousands of ways to commit Suicide in a horrific manner. I feel the more the method allows SI to kick in, the more terrifying it will be.
So off the top of my head, worst method - Walking into the ocean. This is one of the all time classic methods of suicide, often romanticized in Greek Tragedies, but just really think about it. It's going to take HOURS of being out in open ocean before enough fatigue sets in to drown (which is horrific in and of itself).
Just picture being in the pitch dark of night, in open ocean, your SI kicked into hyper-drive, knowing what comes next is one of the worst ways to die. Yeesh.
