This thread screams of me giving my input and I'm going to try and answer the question at hand as opposed to comparing the two and predicting their future as usual.
The big deal to the Ted marks is he has "the look". The prototypical McMahon look. I would guess Ted and Vince are both around 6'2" 240 pounds. Anyone at that size or above have in the past put a gleam in management's eye and have credibility as heavyweight champion by look alone. The same can be said of guys like Lesnar, Batista, Triple H to some extent, and in years past, the Warrior, Hogan, etc. When you are naturally large, you look tough to beat, and in the world or pro wrestling, looking the part is half the battle. The other part is showing you CAN be beat to bring intrigue to any match up.
The other "big deal" factor with Ted is his name. He is the first of the 3 sons of the Million Dollar man to debut in the WWE (though he is the middle child). Even though he was a heel his entire career, as time has gone on, Ted Sr. has become a beloved name in fan folklore. The terms "best to never win the big belt" and "best wrestler not in the hall of fame" have built Ted Sr. into this sympathetic figure, and I believe part of the appeal of Ted Jr. winning the WWE title is almost one of vindication for his father who never got it. While that is unfair to place on the son, especially when there are other sons who are training and for all we know could be a lot better than Ted, Ted is the son who got his father's name. Despite WWE's efforts to expose Jr as his own man, there are some that will always hold out hope for the kid because he father was so good.
The hope ranges like this "his mic skills will come". This being said while having in the back of their mind that his father was one of the best mic workers ever. Combine that with having the generic wrestler look and people HOPE for Ted to succeed.
The reality is that he shows flashes from time to time. He has a physical style in the ring similar to Orton and HHH. Still has work to do on his selling and ring psychology, but seeds have been planted. Also like Orton, his mic skills are bland and his delivery is monotone is a bad way. These are correctable things and being he's only 26, he has plenty of time to correct it. I think one day he'll be a major player IF he puts in the work and doesn't just expect things to be handed to him because of what his last name is. If he takes that road, good things will be ahead.
Conclusion: the big deal is about Ted's future, but his present needs a lot of work to get there. Your dad's name got you to the show, but now you gotta take the bull by the horns and, no pun intended, create your own legacy.