What would you're last words be?

"see you all in hell"

Most definitely.

Here's another choice:

What I would do is stare hungrily into the eyes of one of my loved one, shove my hand into their chest, rip their heart out, biting a huge chunk out of it, and spitting it at the rest of my relatives around. When they start screaming mindlessly, I would act very calmly and say, "What the fuck is your problem? You asked me if I had any last requests, you fucks.." And then I would die.

The readiness is all.

I'll just be a part of the soil.

uhh.. Man.. I.. *cough* ... should've put more.. money on my life insurance.. eh?...

"Son, the code to the safe containing all your mother's money is- *thud*

"Fuck you, fuck you, fuck you, fuck you, and fuck you I'm out..."

"I'll be back. Take care 'till then."

I would say nothing on my last living moments. I just want to be sure that my kids/family is fine and can live without my help.

I'd say nothing.
I don't think I'd have anything relevant to say at such a point.

It would be:

"Finally..."

''So this is it, eh...''

See you in hell.

There is no benefit for it. I'd better preparing to face my death or thinking about my whole life all this time rather than thinking about cheesy lines before death like an anime character.

"I..I fucked your girl and she said I was better...love ya~"

Do greater things than I did with your time here. :)

"My treasure? Why, it's right where I left it... It's yours if you can find it... But you'll have to search the whole world!"
*Thus, the world is about to witness a great era of Piracy!!*

''Ohoho now comes the interesting part!''