A few of the leading candidates...

If the web did the voting, it'd be Dubya, and here.

I bet though if I had done this a few years ago, it'd be Bill Gates.

Although there is a rank outsider....

And if you take this highly informative quiz (hint, the Antichrist is only mentioned 4 times in the bible, and not at all in Revelations, and when he, she or it, is mentioned, he's already appeared & isn't necessarily one person anyway), you'll find that she is actually a little old lady called Mrs Jones (if you're reading literally that is, otherwise it might be you.)

And then I got sick of the whole exercise, especially the pages suggesting the recently deceased Pope might be the man (although there is evidence that JP2 thought it was Dubya too - I mean, you've all seen the Omen films right? Oh yeah... that'd make it Sam Neill...)