1-LaMarcus Joyner, Florida State
2012Though Joyner could be in line for more playing time at cornerback this season, we'll mark him down as a safety. It's his natural position and where he's played for the majority of his Florida State career.
As a junior, he had 51 tackles, 1.5 tackles for loss, five pass breakups and an interception.
WHAT HE'S DOING HERE: Joyner has started 27 consecutive games at safety for Florida State and has also appeared in every game since he arrived to Tallahassee in 2010. After his first season as a starter, Joyner picked up All-ACC second-team honors.
In 41 games during his Florida State career, Joyner has 128 tackles, 3.5 tackles for loss, 11 pass breakups and six interceptions.
Also an explosive option in the return game, Joyner will see his NFL value increase because he adds that dynamic to a roster. He's returned 47 kickoffs for 1,150 yards.
2-Terrence Brooks, Florida State
2012Brooks started all 14 games at free safety and was the leading tackler in the Seminoles' secondary . He also set career bests for tackles, tackles for loss, games played, games started and forced fumbles.
WHAT HE'S DOING HERE: Not only is Brooks a quality option at safety, he's also capable of filling in at cornerback. His ability to contribute on all four special teams will help his NFL draft stock next spring.
A starter in 29 of the 39 games he's appeared in, Johnson has five career interceptions, two of which were returned for touchdowns. (Getty Images)
3-Isaiah Johnson, Georgia Tech
2012Despite suffering an injury that kept him out of the bowl game, Johnson received the team's 2012 Defensive Effort Award.
He also finished last season with first among Georgia Tech defenders with 87 tackles, including 4.5 tackles for loss, a sack and an interception.
WHAT HE'S DOING HERE: A starter in 29 of the 39 games he's appeared in, Johnson has five career interceptions, two of which were returned for touchdowns.
Johnson enters his senior season with 211 career tackles -- the 14th-most ever by a Georgia Tech defensive back. That's good for second-most on the ACC's list of active players.
Honorable Mention-A.J. Marshall, Wake Forest
2012Marshall finished third among Wake Forest tacklers with 76, but led the team with 41 solo stops. He also had a pair of interceptions, including one that was returned for a touchdown.
After the season, he was named All-ACC honorable mention.
WHAT HE'S DOING HERE: The former cornerback pulled off a feat that's rarely accomplished by anyone at Wake Forest. As a true freshman in 2010, Marshall avoided a redshirt. In 36 games, he has 106 tackles, a sack, nine pass breakups and two interceptions.