Olowokandi and Kwame Brown should be #2 and #3. #1 probably should be Larue Martin. Who is he? I don't know, but I looked at past drafts and he was the #1 overall pick in 1972.
Oden is probably in the top-10, although it's hard to fault a guy for being injured. If he just flat out underperformed and stunk, like Olowokandi, Brown, and Martin, then I could understand why he would be at the top. But he hasn't stunk when he has played, albeit very little, while the other three have been or were brutal.