Asking about which kids will make it is always interesting. Looking back over the years there is a "boneyard" of talent that just gets fried out there. I was thinking about this last night (before I saw your Q here) watching Tiger and Steve destroy Ogilvie and Ishikawa. It was amazing to watch Ishikawa knock his tee shot right down the middle on 1 to the same distance as Tiger. Then I watched the reply and Ryo really looks awesome from a poise and swing perspective, and when you think he's only 18 years old, you marvel at what he could do. But can he win on the big stage of the PGA? Time will tell.
The kid I think will be fun to watch is Sean O'Hair. First, he's had a crazy personal life, so playing golf is probably easier than his demons. He now has guys like Tiger and Michale Jordan mentoring him, which can't be a bad thing. And he's just a really nice guy according to all accounts. In some ways he reminds me of a young Stricker; talented and streaky.
Seeing who EM picked, I also was thinking of the day when Rory and Ryo match up head to head, maybe in the Masters. Think of that match!