"I thought it would be a good choice for me to go there and the system that they run fits me perfect," Davis said. "I just didn't want this process to run any longer."
"I think it was the best decision for me basketball wise and academics wise," he continued.
"It's a dream come true - probably more for me than him," said Davis' father, Terry, who played in the NBA. "We dreamed for him to get this type of attention and for people like North Carolina to recruit him.
"I think I'm more excited than he is," he added.
Davis becomes UNC's second commitment in the 2008 class, joining California point guard Larry Drew Jr., who is also the son of a former NBA player.
"We've been talking and he really likes Larry Drew's son and the way he plays," the elder Davis said. "He's someone who he really wanted to play with."
Davis emerged as a star at Benedictine last season, averaging 18 points and 13 rebounds, while leading the school to a 29-3 record and the Virginia Independent Schools championship.
"We won a state championship and won every tournament we entered," Benedictine head basketball coach Sean McAloon said. "[Davis] played a major part, because of how talented he is. ... obviously, a lot of things ran through Ed.
"He was valuable because of offense and defense. Not many people drove the lane on us, because he patrolled it. And offensively, he scored, rebounded -- he did everything we needed."
Dave Telep, Evan Daniels and Jeff Goodman contributed to this report