CM Punk.
Every time he comes down to the ring to talk, people listen. Maybe thats just because of his gimmick, or whatever, but he makes the audience feel something towards him, which is more than can be said for half the WWE roster at the minute. Everything he touches at the moment is golden, the fued with Jeff Hardy for instance. He made that feud great, as he did with the Undertaker. On the mic, he is amazing. In the ring, he is awesome, both at the technical stuff and the high-flying stuff.
The thing that remains to be seen is if he can translate the major heat he's been getting into a major pop if he turns face. With what he's been showing so far, I beleieve he can.
So yeah, I don't think there's a complete 'Most Electrifying...' but CM PUnk is the closest to being it. I still think he needs one great face turn, and one great feud, maybe against the McMahons, or a super-heel.