well, i agree with what most people are saying. although i believe that if either one of them were given the opportunity of being WHC they could pull it off; i don't think it'll happen, not for Jeff anyways. I'm a pretty big Jeff hardy mark, and think he's awesome; but like everyone said he is cut out for the midcard. He's a spot monkey, and occasionally botches, but that doesn't mean he isn't a good wrestle; not everyone is perfect. he would need to improve his mic skills and charisma, but i truly believe he could be a heavyweight champion(if given the right opportunity).
Matt is solid in the ring, and without a doubt has what it takes to be WHC. He isn't the greatest on the microphone either, but he's good enough.
(to 3 lions)
i don't really consider Shawn Michaels a spot monkey. yes, he does big spots in high profile matches, but he is also a great wrestler. the definition of spot monkey is someone who does big spots, and has little wrestling skills.