There's no doubt that LeBron James had more Pre-Draft pressure then Greg Oden. LeBron James high school games were broadcast on ESPN daily, and at that time that was unheard of. He was talked about being "The Chosen One" long before he played is first professional game. Greg Oden did have a lot of pressure on him because he was considered to many legends, but a non-basketball fan wouldn't know who he is when he was playing in Ohio State unlike LeBron James when he was playing in Akron. I didn't start hearing about Greg Oden a few months before he started for the Buckeyes. I learned about LeBron James 3 years before he started to play in the NBA, and that's from a canadian show.
I have to go with LeBron on this one, he's been scouted since he was in the sixth grade. I believe that he had more hype then anybody that ever entered the league, they were saying he's the next Jordan the next Magic Johnson, he had the nickname The Chosen One in high school, he was on the cover of SI in high school. He had so much hype it's not even funny. Oden has had a lot of hype as well, but not like James.